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  1. Caffeine During Pregnancy
  2. CAGE Questionnaire for Alcohol Problems
  3. Calcium (Ca) in Blood Test - Medical Test
  4. Calcium (Ca) in Urine Test - Medical Test
  5. Calcium Deposits and Tendinitis (Calcific Tendinitis)
  6. Calf Muscle Injury
  7. Calluses and Corns
  8. Calluses and Corns: Protective Padding
  9. Calluses and Corns: Using Pumice Stones
  10. Calming Your Mind With Mindfulness-Based Stress Reduction (MBSR)
  11. Cal's Story: Learning to Exercise When You Have COPD
  12. Campylobacteriosis
  13. Cancell/Cantron/Protocel (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
  14. Cancell/Cantron/Protocel (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]
  15. Cancer
  16. Cancer Antigen 125 (CA-125) Test - Medical Test
  17. Cancer: Controlling Cancer Pain
  18. Cancer: Controlling Nausea and Vomiting From Chemotherapy
  19. Cancer During Pregnancy
  20. Cancer Genetics Overview (PDQ®): Genetics - Health Professional Information [NCI]
  21. Cancer Genetics Risk Assessment and Counseling (PDQ®): Genetics - Health Professional Information [NCI]
  22. Cancer: Home Treatment for Constipation
  23. Cancer: Home Treatment for Diarrhea
  24. Cancer: Home Treatment for Fatigue
  25. Cancer: Home Treatment for Mouth Sores
  26. Cancer: Home Treatment for Nausea or Vomiting
  27. Cancer: Home Treatment for Pain
  28. Cancer: Home Treatment for Sleep Problems
  29. Cancer Pain
  30. Cancer Pain (PDQ®): Supportive care - Health Professional Information [NCI]
  31. Cancer Pain (PDQ®): Supportive care - Patient Information [NCI]
  32. Cancer Prevention Overview (PDQ®): Prevention - Health Professional Information [NCI]
  33. Cancer Prevention Overview (PDQ®): Prevention - Patient Information [NCI]
  34. Cancer Screening Overview (PDQ®): Screening - Health Professional Information [NCI]
  35. Cancer Screening Overview (PDQ®): Screening - Patient Information [NCI]
  36. Cancer Staging and Grading
  37. Cancer Support: Being an Active Patient
  38. Cancer Support: Coping With Cancer Treatments
  39. Cancer Support: Dealing With Emotions and Fears
  40. Cancer Support: Family, Friends, and Relationships
  41. Cancer Support: Finding Out That You Have Cancer
  42. Cancer Support: Life After Treatment
  43. Cancer Support: Managing Stress
  44. Cancer Support: When Your Cancer Comes Back or Gets Worse
  45. Cancer Therapy Interactions With Foods and Dietary Supplements (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
  46. Cancer Therapy Interactions With Foods and Dietary Supplements (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]
  47. Cancer Treatment and Infertility
  48. Cancer-Related Post-traumatic Stress (PDQ®): Supportive care - Health Professional Information [NCI]
  49. Cancer-Related Post-traumatic Stress (PDQ®): Supportive care - Patient Information [NCI]
  50. Canker Sores
  51. Cannabis and Cannabinoids (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
  52. Cannabis and Cannabinoids (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]
  53. Capsaicin
  54. Capsaicin for Osteoarthritis
  55. Carbohydrate Foods
  56. Carbohydrates, Proteins, Fats, and Blood Sugar
  57. Carbon Dioxide (CO2) Test - Medical Test
  58. Carbon Dioxide Laser Surgery for Abnormal Cervical Cell Changes
  59. Carbon Monoxide (CO) Test - Medical Test
  60. Carbon Monoxide Poisoning
  61. Carbon Monoxide Poisoning: Protecting Your Home
  62. Carcinoembryonic Antigen (CEA) Test - Medical Test
  63. Carcinoma of Unknown Primary Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  64. Carcinoma of Unknown Primary Treatment (PDQ®): Treatment - Patient Information [NCI]
  65. Cardiac Arrest
  66. Cardiac Blood Pool Scan - Medical Test
  67. Cardiac Cachexia
  68. Cardiac Catheterization - Medical Test
  69. Cardiac Catheterization in Children - Medical Test
  70. Cardiac Device Monitoring
  71. Cardiac Enzyme Studies - Medical Test
  72. Cardiac Output
  73. Cardiac Perfusion Scan - Medical Test
  74. Cardiac Rehabilitation
  75. Cardiac Rehabilitation: Emotional Health Benefits
  76. Cardiac Rehabilitation: Exercise
  77. Cardiac Rehabilitation: Home Program
  78. Cardiac Rehabilitation: Hospital Program
  79. Cardiac Rehabilitation: Lifestyle Changes
  80. Cardiac Rehabilitation: Maintenance Program
  81. Cardiac Rehabilitation: Medicine and Exercise
  82. Cardiac Rehabilitation: Monitoring Your Body's Response to Exercise
  83. Cardiac Rehabilitation: Outpatient Program
  84. Cardiac Rehabilitation Team
  85. Cardiac Rehabilitation: Weight and Resistance Training
  86. Cardiomyopathy
  87. Cardiopulmonary Syndromes (PDQ®): Supportive care - Health Professional Information [NCI]
  88. Cardiopulmonary Syndromes (PDQ®): Supportive care - Patient Information [NCI]
  89. Care at the End of Life
  90. Care for a Skin Wound
  91. Care for an Indwelling Urinary Catheter
  92. Care of an Insect Sting
  93. Caregiver Support: Talking About Advance Care Planning
  94. Caregiver Tips
  95. Caregiving: Adult Underwear for Incontinence
  96. Caregiving: Fingernail Care
  97. Caregiving: Foot and Toenail Care
  98. Caregiving: Helping Someone With Eating
  99. Caregiving: How to Give a Bed Bath
  100. Caregiving: How to Help With a Shower
  101. Caregiving: How to Help With a Sink Bath
  102. Caregiving: How to Turn Someone in Bed
  103. Caregiving: Making a Home Safe
  104. Caregiving: Overview of Personal Care
  105. Caregiving: Preventing Rashes in the Groin Area
  106. Caregiving: Reducing Germs and Infection in the Home
  107. Caregiving: Shaving an Adult
  108. Caregiving: Skin Care for Immobile Adults
  109. Caregiving: Using a Bedpan or Urinal
  110. Caregiving: Using a Bedside Commode (Toilet)
  111. Caregiving: Using Disposable Gloves
  112. Caregiving: Washing and Styling Hair
  113. Caregiving: Washing Soiled Clothes and Linens
  114. Caring for a Baby's Nails
  115. Caring for Adults With Autism
  116. Caring for More Than One Baby
  117. Caring for Your Skin When You Have Diabetes
  118. Carole's Story: Taking Medicine Right Away to Stop a Migraine
  119. Carotid Artery Disease
  120. Carotid Artery Stenting
  121. Carotid Endarterectomy
  122. Carpal Tunnel Syndrome
  123. Carpal Tunnel Syndrome: Safe Posture and Movements
  124. Carpal Tunnel Syndrome: Should I Have Surgery?
  125. Cartilage (Bovine and Shark) (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
  126. Cartilage (Bovine and Shark) (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]
  127. Cast Care Tips
  128. Cataract Surgery
  129. Cataracts
  130. Cataracts: Eye Care After Surgery
  131. Cataracts in Children
  132. Cataracts: Questions About Surgery
  133. Cataracts: Should I Have Surgery?
  134. Catecholamines in Blood Test - Medical Test
  135. Catecholamines in Urine Test - Medical Test
  136. Catheter Ablation for a Fast Heart Rate
  137. Catheter Ablation for Atrial Fibrillation
  138. Catheters for Urinary Incontinence in Men
  139. Cathy's Story: Dealing With Stress
  140. Causes of Bleeding in the Digestive Tract
  141. Causes of Hair Loss: Medicines and Medical Treatments
  142. Causes of Hyperventilation
  1. Challenge Tests for Asthma - Medical Test
  2. Chamomile
  3. Change a Habit by Setting Goals
  4. Change in Heartbeat
  5. Change Your Outlook to Lower Your Stress
  6. Changes in Your Nails
  7. Charting Your Basal Body Temperature
  8. Checklist for Evaluating Hospice Programs
  9. Checklist for Preventing Falls at Home
  10. Checklist for Shoes and Socks That Fit Well
  11. Checklist for the Home for Vertigo
  12. Chelation Therapy
  13. Chemical Burn
  14. Chemical in the Eye
  15. Chemical Peel
  16. Chemical Pinkeye (Conjunctivitis)
  17. Chemistry Screen - Medical Test
  18. Chemo Brain
  19. Cheryl's Story: Dealing With Depression
  20. Chest Problems
  21. Chest X-Ray - Medical Test
  22. Chickenpox: Controlling the Itch
  23. Chickenpox: Preventing Skin Infections
  24. Chickenpox (Varicella)
  25. Chikungunya Fever
  26. Chilblains (Perniosis)
  27. Child Abuse and Neglect
  28. Child Abuse: Emotional Abuse by Parents
  29. Child Car Seats
  30. Child Safety: Air Pollution
  31. Child Safety: Bathing
  32. Child Safety: Bicycles and Tricycles
  33. Child Safety: Drowning Prevention in Pools and Hot Tubs
  34. Child Safety: Fires
  35. Child Safety: Guns and Firearms
  36. Child Safety: Pets
  37. Child Safety: Preventing Burns
  38. Child Safety: Preventing Child Abduction
  39. Child Safety: Preventing Drowning
  40. Child Safety: Preventing Falls
  41. Child Safety: Streets and Motor Vehicles
  42. Child Safety: Strollers and Shopping Carts
  43. Child Safety: Washing Toys to Prevent Germs
  44. Child Who Is Overweight: Evaluating Nutrition and Activity Patterns
  45. Child Who Is Overweight: Medical Evaluation
  46. Childbirth Afterpains
  47. Childbirth Classes
  48. Childbirth: Epidurals
  49. Childbirth: Is Planning a C-Section a Good Choice?
  50. Childbirth: Laboring in Water and Water Delivery
  51. Childbirth: Opioid Pain Medicines
  52. Childbirth: Perineal Massage Before Labor
  53. Childbirth Planning: How to Partner With Your Doctor
  54. Childbirth: Pudendal Block
  55. Childbirth: Strep Infections During Delivery
  56. Childhood Acute Lymphoblastic Leukemia Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  57. Childhood Acute Lymphoblastic Leukemia Treatment (PDQ®): Treatment - Patient Information [NCI]
  58. Childhood Acute Myeloid Leukemia/Other Myeloid Malignancies Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  59. Childhood Acute Myeloid Leukemia/Other Myeloid Malignancies Treatment (PDQ®): Treatment - Patient Information [NCI]
  60. Childhood Adrenocortical Carcinoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  61. Childhood Adrenocortical Carcinoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  62. Childhood Astrocytomas Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  63. Childhood Astrocytomas Treatment (PDQ®): Treatment - Patient Information [NCI]
  64. Childhood Basal Cell Carcinoma and Squamous Cell Carcinoma of the Skin Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  65. Childhood Basal Cell Carcinoma and Squamous Cell Carcinoma of the Skin Treatment (PDQ®): Treatment - Patient Information [NCI]
  66. Childhood Bladder Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  67. Childhood Bladder Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  68. Childhood Brain and Spinal Cord Tumors Treatment Overview (PDQ®): Treatment - Health Professional Information [NCI]
  69. Childhood Brain and Spinal Cord Tumors Treatment Overview (PDQ®): Treatment - Patient Information [NCI]
  70. Childhood Brain Stem Glioma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  71. Childhood Brain Stem Glioma Treatment (PDQ®): Treatment - Patient Information [NCI]
  72. Childhood Breast Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  73. Childhood Breast Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  74. Childhood Cancer Genomics (PDQ®): Treatment - Health Professional Information [NCI]
  75. Childhood Carcinoma of Unknown Primary Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  76. Childhood Carcinoma of Unknown Primary Treatment (PDQ®): Treatment - Patient Information [NCI]
  77. Childhood Cardiac (Heart) Tumors Treatment (PDQ®): Treatment - Patient Information [NCI]
  78. Childhood Cardiac Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  79. Childhood Central Nervous System Atypical Teratoid/Rhabdoid Tumor Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  80. Childhood Central Nervous System Atypical Teratoid/Rhabdoid Tumor Treatment (PDQ®): Treatment - Patient Information [NCI]
  81. Childhood Central Nervous System Germ Cell Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  82. Childhood Central Nervous System Germ Cell Tumors Treatment (PDQ®): Treatment - Patient Information [NCI]
  83. Childhood Cervical and Vaginal Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  84. Childhood Cervical and Vaginal Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  85. Childhood Chordoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  86. Childhood Chordoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  87. Childhood Colorectal Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  88. Childhood Colorectal Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  89. Childhood Craniopharyngioma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  90. Childhood Craniopharyngioma Treatment (PDQ®): Treatment - Patient Information [NCI]
  91. Childhood Ependymoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  92. Childhood Ependymoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  93. Childhood Esophageal Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  94. Childhood Esophageal Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  95. Childhood Esthesioneuroblastoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  96. Childhood Esthesioneuroblastoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  97. Childhood Extracranial Germ Cell Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  98. Childhood Extracranial Germ Cell Tumors Treatment (PDQ®): Treatment - Patient Information [NCI]
  99. Childhood Fears and Exposure to Violence
  100. Childhood Gastrointestinal Carcinoid Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  101. Childhood Gastrointestinal Carcinoid Tumors Treatment (PDQ®): Treatment - Patient Information [NCI]
  102. Childhood Gastrointestinal Stromal Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  103. Childhood Gastrointestinal Stromal Tumors Treatment (PDQ®): Treatment - Patient Information [NCI]
  104. Childhood Hodgkin Lymphoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  105. Childhood Hodgkin Lymphoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  106. Childhood Immunization Record
  107. Childhood Immunization Schedule: Ages 0 to 6 Years
  108. Childhood Immunization Schedule: Ages 7 to 18 Years
  109. Childhood Intraocular (Uveal) Melanoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  110. Childhood Intraocular (Uveal) Melanoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  111. Childhood Laryngeal Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  112. Childhood Laryngeal Tumors Treatment (PDQ®): Treatment - Patient Information [NCI]
  113. Childhood Liver Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  114. Childhood Liver Cancer Treatment: Treatment - Patient Information [NCI]
  115. Childhood Medulloblastoma and Other Central Nervous System Embryonal Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  116. Childhood Medulloblastoma and Other Central Nervous System Embryonal Tumors Treatment (PDQ®): Treatment - Patient Information [NCI]
  117. Childhood Melanoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  118. Childhood Melanoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  119. Childhood Mesothelioma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  120. Childhood Mesothelioma Treatment (PDQ®): Treatment - Patient Information [NCI]
  121. Childhood Midline Tract Carcinoma Involving the NUT Gene (NUT Midline Carcinoma) Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  122. Childhood Midline Tract Carcinoma with NUT Gene Changes Treatment (PDQ®): Treatment - Patient Information [NCI]
  123. Childhood Multiple Endocrine Neoplasia (MEN) Syndromes Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  124. Childhood Multiple Endocrine Neoplasia (MEN) Syndromes Treatment (PDQ®): Treatment - Patient Information [NCI]
  125. Childhood Nasopharyngeal Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  126. Childhood Nasopharyngeal Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  127. Childhood Non-Hodgkin Lymphoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  128. Childhood Non-Hodgkin Lymphoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  129. Childhood Oral Cavity Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  130. Childhood Oral Cavity Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  131. Childhood Ovarian Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  132. Childhood Ovarian Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  133. Childhood Pancreatic Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  134. Childhood Pancreatic Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  135. Childhood Pheochromocytoma and Paraganglioma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  136. Childhood Pheochromocytoma and Paraganglioma Treatment (PDQ®): Treatment - Patient Information [NCI]
  137. Childhood Pleuropulmonary Blastoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  138. Childhood Pleuropulmonary Blastoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  139. Childhood Pulmonary Inflammatory Myofibroblastic Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  140. Childhood Rhabdomyosarcoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  141. Childhood Rhabdomyosarcoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  142. Childhood Salivary Gland Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  143. Childhood Salivary Gland Tumors Treatment (PDQ®): Treatment - Patient Information [NCI]
  144. Childhood Soft Tissue Sarcoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  145. Childhood Soft Tissue Sarcoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  146. Childhood Stomach (Gastric) Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  147. Childhood Stomach (Gastric) Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  148. Childhood Testicular Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  149. Childhood Testicular Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  150. Childhood Thymoma and Thymic Carcinoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  151. Childhood Thymoma and Thymic Carcinoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  152. Childhood Thyroid Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  153. Childhood Thyroid Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  154. Childhood Tracheobronchial Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  155. Childhood Tracheobronchial Tumors Treatment (PDQ®): Treatment - Patient Information [NCI]
  156. Childhood Vascular Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  157. Childhood Vascular Tumors Treatment (PDQ®): Treatment - Patient Information [NCI]
  158. Children's Growth Chart
  159. Children's Health
  160. Chili Pepper Burns
  161. Chipped or Broken Tooth or Dental Appliance
  162. Chiropractic
  163. Chlamydia
  164. Chlamydia Tests - Medical Test
  165. Chloride (Cl) Test - Medical Test
  166. Choking Prevention in Small Children
  167. Choking Rescue for Babies
  168. Choking Rescue Procedure: Heimlich Maneuver
  169. Cholecystitis
  170. Cholera Vaccine: What You Need to Know
  171. Cholestasis of Pregnancy
  172. Cholesterol and Triglycerides: Eating Fish and Fish Oil
  173. Cholesterol and Triglycerides Tests - Medical Test
  174. Cholesterol in Children and Teens
  175. Cholesterol Treatment Guidelines
  176. Choosing a Counselor or Therapist for Your Child
  177. Choosing a Health Care Agent
  178. Choosing a Health Care Provider
  179. Choosing a Hospital
  180. Choosing a Nursing Home
  181. Choosing a Nursing Home
  182. Choosing a Prosthesis After Breast Cancer Surgery
  183. Choosing a Vitamin and Mineral Supplement
  184. Choosing a Weight-Loss Program
  185. Choosing an Insulin Pump
  186. Choosing Baby Bottles and Nipples
  187. Choosing Child Care
  188. Chorionic Villus Sampling (CVS) - Medical Test
  189. Chromium
  190. Chronic Constipation
  191. Chronic Illness: Help for Caregivers
  192. Chronic Kidney Disease
  193. Chronic Kidney Disease: Medicines to Be Careful With
  194. Chronic Lung Disease in Infants
  195. Chronic Lymphocytic Leukemia Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  196. Chronic Lymphocytic Leukemia Treatment (PDQ®): Treatment - Patient Information [NCI]
  197. Chronic Myelogenous Leukemia Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  198. Chronic Myelogenous Leukemia Treatment (PDQ®): Treatment - Patient Information [NCI]
  199. Chronic Myeloproliferative Neoplasms Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  200. Chronic Myeloproliferative Neoplasms Treatment (PDQ®): Treatment - Patient Information [NCI]
  201. Chronic Myofascial Pain
  202. Chronic Pain
  203. Chronic Pain Syndrome
  204. Chronic Pain: Using Healthy Thinking
  205. Chronic Pancreatitis: Pain Management
  206. Chronic Pelvic Pain
  1. Cocaine
  2. Cochlear Implants
  3. Coenzyme Q10
  4. Coenzyme Q10 (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
  5. Coenzyme Q10 (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]
  6. Cognitive Development, Ages 1 to 12 Months
  7. Cognitive Development, Ages 12 to 24 Months
  8. Cognitive Development, Ages 15 to 18 Years
  9. Cognitive Development, Ages 6 to 10 Years
  10. Cognitive Growth in Newborns
  11. Cognitive Impairment in Adults With Non−Central Nervous System Cancers (PDQ®): Supportive care - Health Professional Information [NCI]
  12. Cognitive Impairment in Adults with Non−Central Nervous System Cancers (PDQ®): Supportive care - Patient Information [NCI]
  13. Cognitive-Behavioral Therapy for Eating Disorders
  14. Cognitive-Behavioral Therapy for Pain Management
  15. Cold Agglutinins Test - Medical Test
  16. Cold Exposure: Emergency Equipment
  17. Cold Exposure: Ways the Body Loses Heat
  18. Cold Exposure: What Increases Your Risk of Injury?
  19. Cold Hands: Home Treatment
  20. Cold Packs for Eye Injuries
  21. Cold Sores
  22. Cold Temperature Exposure
  23. Colds
  24. Colds and Flu
  25. Colic
  26. Colic Diary
  27. Colic: Harmful Treatments
  28. Collapsed Lung (Pneumothorax)
  29. Colon Cancer Genetic Testing
  30. Colon Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  31. Colon Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  32. Colon Polyps
  33. Colonoscopy - Medical Test
  34. Color Blindness
  35. Color Changes in Nails
  36. Colorectal Cancer
  37. Colorectal Cancer, Metastatic or Recurrent
  38. Colorectal Cancer Prevention (PDQ®): Prevention - Health Professional Information [NCI]
  39. Colorectal Cancer Prevention (PDQ®): Prevention - Patient Information [NCI]
  40. Colorectal Cancer Screening
  41. Colorectal Cancer Screening (PDQ®): Screening - Health Professional Information [NCI]
  42. Colorectal Cancer Screening (PDQ®): Screening - Patient Information [NCI]
  43. Colorectal Cancer: Which Screening Test Should I Have?
  44. Colostomy
  45. Colposcopy - Medical Test
  46. Combining Breastfeeding and Bottle-Feeding
  47. Comforting a Child Who Has a Respiratory Illness
  48. Committing Again to Healthy Eating
  49. Committing to Quitting: Your Quit-Tobacco Plan
  50. Common Coping Responses for Stress
  51. Common Questions About Giving Yourself Shots
  52. Common Questions About Sexual Orientation
  53. Common Stinging or Biting Insects or Spiders
  54. Common Types of Birthmarks
  55. Common Types of Hernias
  56. Communication in Cancer Care (PDQ®): Supportive care - Health Professional Information [NCI]
  57. Communication in Cancer Care (PDQ®): Supportive care - Patient Information [NCI]
  58. Comparing Artificial Sweeteners
  59. Comparing Nicotine Replacement Methods
  60. Comparing Rheumatoid Arthritis and Osteoarthritis
  61. Comparing Stop-Smoking Medicines
  62. Comparing Symptoms of Normal Moodiness With Depression in Children
  63. Complement Test - Medical Test
  64. Complementary Medicine
  65. Complementary Medicine
  66. Complementary Medicine for Arthritis
  67. Complete Blood Count (CBC) - Medical Test
  68. Complex Regional Pain Syndrome
  69. Complicated Urinary Tract Infections
  70. Complications, Graft-Versus-Host Disease, and Late Effects After Pediatric Hematopoietic Stem Cell Transplantation (PDQ®): Treatment - Health Professional Information [NCI]
  71. Complications of Ear Infections
  72. Complications of Enlarged Prostate
  73. Complications of Grief
  74. Complications of Lupus
  75. Complications of Osteoarthritis
  76. Complications of Paget's Disease
  77. Complications of Peptic Ulcer
  78. Comprehensive Metabolic Panel
  79. Comprehensive Rehabilitation Programs for Low Back Pain
  80. Compression Stockings for Varicose Veins
  81. Compression Stockings: How to Use Them
  82. Computed Tomography (CT) Angiogram - Medical Test
  83. Computed Tomography (CT) Scan of the Body - Medical Test
  84. Computed Tomography (CT) Scan of the Head and Face - Medical Test
  85. Computed Tomography (CT) Scan of the Spine - Medical Test
  86. Concussion
  87. Conditions Related to Dyslexia
  88. Conditions With Symptoms Similar to Depression in Children and Teens
  89. Cone Biopsy (Conization) for Abnormal Cervical Cell Changes
  90. Confusion, Memory Loss, and Altered Alertness
  91. Congenital Heart Defect Types
  92. Congenital Heart Defects: Caring for Your Child
  93. Congenital Heart Defects in Adults
  94. Congenital Heart Defects in Children
  95. Congenital Hydrocele
  96. Congenital Hydrocephalus
  97. Congenital Syphilis
  98. Congenital Torticollis
  99. Conserving Energy When You Have COPD or Other Chronic Conditions
  100. Constipation, Age 11 and Younger
  101. Constipation, Age 12 and Older
  102. Constipation in Children
  103. Constipation: Keeping Your Bowels Healthy
  104. Contact Lens Care
  105. Contact Lens Problems: Hypoxia
  106. Contact Lens Problems: Infection
  107. Contact Lenses
  108. Contact Lenses: Dry Eyes
  109. Continuous Glucose Monitoring
  110. Continuous Positive Airway Pressure (CPAP) Therapy for Obstructive Sleep Apnea
  111. Contraceptive Sponge for Birth Control
  112. Contraction Stress Test - Medical Test
  113. Contractions During Pregnancy: What to Expect
  114. Controlling Dust, Dust Mites, and Other Allergens in Your Home
  115. Controlling Indoor Mold
  116. Controlling Pet Allergens
  117. Coombs Test - Medical Test
  118. COPD
  119. COPD Action Plan
  120. COPD and Alpha-1 Antitrypsin (AAT) Deficiency
  121. COPD and Sex
  122. COPD: Avoiding Weight Loss
  123. COPD: Avoiding Your Triggers
  124. COPD (Chronic Obstructive Pulmonary Disease)
  125. COPD: Clearing Your Lungs
  126. COPD Flare-Ups
  127. COPD: Handling a Flare-Up
  128. COPD: Keeping Your Diet Healthy
  129. COPD: Lung Volume Reduction Surgery
  130. COPD: Using Exercise to Feel Better
  131. COPD's Effect on the Lungs
  132. Coping After a Traumatic Event
  133. Coping Strategies to Avoid Harming a Baby
  134. Coping When Your Child Is Near the End of Life
  135. Coping With Changing Sleep Patterns as You Get Older
  136. Coping With Cravings When You're Quitting Tobacco
  137. Coping With Osteoarthritis
  138. Coping With Stress
  139. Copperhead
  140. Coral Snake
  141. Corneal Ring Implants for Nearsightedness
  142. Coronary Angioplasty
  143. Coronary Arteries and Heart Function
  144. Coronary Artery Bypass Graft Surgery: How It Is Done
  145. Coronary Artery Bypass Graft Surgery: How to Prepare
  146. Coronary Artery Bypass Graft Surgery: Recovering in the Hospital
  147. Coronary Artery Bypass Graft Surgery: Self-Care for Recovery
  148. Coronary Artery Bypass Graft Surgery: The Recovery Process
  149. Coronary Artery Bypass Graft Surgery: What to Expect After You Go Home
  150. Coronary Artery Bypass Surgery
  151. Coronary Artery Bypass Surgery: Day One of Recovery
  152. Coronary Artery Bypass Surgery: Minimally Invasive Methods
  153. Coronary Artery Bypass Surgery: When You Arrive at the Hospital
  154. Coronary Artery Bypass Surgery: Your Medical Team
  155. Coronary Artery Disease
  156. Coronary Artery Disease and Alcohol
  157. Coronary Artery Disease: Exercising for a Healthy Heart
  158. Coronary Artery Disease: Family History
  159. Coronary Artery Disease: Helping a Loved One
  160. Coronary Artery Disease: Prevention Myths
  161. Coronary Artery Disease: Roles of Different Doctors
  162. Coronary Artery Disease: Should I Have an Angiogram?
  163. Coronary Artery Disease: Should I Have Angioplasty for Stable Angina?
  164. Coronary Artery Disease: Should I Have Bypass Surgery?
  165. Coronary Calcium Scan - Medical Test
  166. Coronary Calcium Scan: Should I Have This Test?
  167. Coronavirus (COVID-19)
  168. Coronavirus (COVID-19) Symptom Checker
  169. Corporal Punishment
  170. Cortisol in Blood Test - Medical Test
  171. Cortisol in Urine Test - Medical Test
  172. Cosmetic Surgery and Procedures
  173. Cottonmouth (Water Moccasin)
  174. Cough Symptoms in Children
  175. Coughs, Age 11 and Younger
  176. Coughs, Age 12 and Older
  177. Counseling for PTSD
  178. Counseling for Your Teen
  179. Counting Carbohydrate Grams or Servings
  180. COVID-19: Advice if You're Planning a Pregnancy, Pregnant, Recently Pregnant, or Breastfeeding
  181. COVID-19: Caring for Someone Who Is Sick
  182. COVID-19 or Flu? How to Tell
  183. COVID-19: Prevention for People With Weakened Immune Systems
  184. COVID-19: Pushing Back Against Stigma
  185. Cow's Milk Sensitivity in Babies