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Top of the page- Obesity
- Obesity and Pregnancy
- Obesity: Finding Inspiration for Change
- Obesity: Imagine Your More Active Life
- Obesity: Should I Have Weight-Loss Surgery?
- Obesity: Should I Take Weight-Loss Medicine?
- Obesity: Should I Use a Diet Plan to Lose Weight?
- Obesity: What Gets in the Way of Eating Healthier?
- Obesity: What Gets in the Way of Your Being Active?
- Object in a Child's Ear: Care Instructions
- Object in a Child's Eye: Care Instructions
- Object in a Child's Nose: Care Instructions
- Object in a Child's Skin: Care Instructions
- Object in a Child's Throat or Esophagus: Care Instructions
- Object in a Child's Vagina: Care Instructions
- Object in Rectum: Care Instructions
- Object in the Ear: Care Instructions
- Object in the Eye: Care Instructions
- Object in the Eye: First Aid
- Object in the Nose: Care Instructions
- Object in the Skin: Care Instructions
- Object in the Vagina
- Object in the Vagina: Care Instructions
- Object in Urethra: Care Instructions
- Object Stuck in a Child's Airway
- Object Stuck in the Throat
- Object Under Fingernail: Care Instructions
- Objects in the Ear
- Objects in the Eye
- Objects in the Nose
- Obsessive-Compulsive Disorder: Care Instructions
- Obsessive-Compulsive Disorder (OCD)
- Obsessive-Compulsive Disorder (OCD) in Children: Care Instructions
- Obsessive-Compulsive Disorder: Should I Take Medicine for OCD?
- Obstetric Panel
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Top of the page- Older Adults: Be Inspired to Get Active (video)
- Older Adults: Getting Active After a Health Scare (video)
- Older Adults: Getting Active After a Health Scare
- Older Adults: Making Activity a Routine
- Older Adults: Making Physical Activity a Routine (video)
- Older Adults: Overcoming Barriers to Fitness (video)
- Older Adults: When Your Thoughts Keep You From Being Active
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Top of the page- Open Bowel Resection: Before Your Child's Surgery
- Open Bowel Resection: Before Your Surgery
- Open Bowel Resection in Children: What to Expect at Home
- Open Bowel Resection: What to Expect at Home
- Open Breast Biopsy: Before Your Surgery (video)
- Open Breast Biopsy: Before Your Surgery
- Open Breast Biopsy: Returning Home (video)
- Open Breast Biopsy: What to Expect at Home
- Open Carpal Tunnel Surgery
- Open Drainage of a Joint: Before Your Surgery
- Open Drainage of a Joint: What to Expect at Home
- Open Gallbladder Surgery for Gallstones
- Open Inguinal Hernia Repair (Herniorrhaphy, Hernioplasty)
- Open Nephrectomy: Before Your Surgery
- Open Nephrectomy: What to Expect at Home
- Open Oophorectomy: Before Your Surgery
- Open Oophorectomy: What to Expect at Home
- Open Reduction With Internal Fixation of a Limb: Before Your Child's Surgery
- Open Reduction With Internal Fixation of a Limb: Before Your Surgery
- Open Reduction With Internal Fixation of a Limb in Children: What to Expect at Home
- Open Reduction With Internal Fixation of a Limb: What to Expect at Home
- Open Retropubic Suspension: Before Your Surgery
- Open Retropubic Suspension Surgery: What to Expect at Home
- Open Surgery for Kidney Stones
- Open-Angle Glaucoma: Care Instructions
- Opened Cut After Surgery: Care Instructions
- Open-Heart Surgery: Returning Home (video)
- Open-Heart Surgery: Returning Home
- Open-Joint Arthroplasty for Temporomandibular Disorders
- Ophthalmoscopy - Medical Test
- Ophthalmoscopy: About This Test
- Opioid Medicine for Chronic Pain
- Opioid Overdose: Care Instructions
- Opioid Overdose in Teens: Care Instructions
- Opioid Use Disorder
- Opioid Use During Pregnancy
- Opioid Withdrawal: Care Instructions
- Opioids
- Opioids for Children (video)
- Opioids: Know What's Safe (video)
- Opportunistic Infections in HIV
- Oppositional Defiant Disorder (ODD) in Children: Care Instructions
- Optic Neuritis
- Optic Neuritis: Care Instructions
O R
Top of the page- Oral Breathing Devices for Sleep Apnea and Snoring
- Oral Breathing Devices for Snoring
- Oral Cancer
- Oral Cavity and Nasopharyngeal Cancers Screening (PDQ®): Screening - Health Professional Information [NCI]
- Oral Cavity and Nasopharyngeal Cancers Screening (PDQ®): Screening - Patient Information [NCI]
- Oral Cavity, Oropharyngeal, Hypopharyngeal, and Laryngeal Cancers Prevention (PDQ®): Prevention - Health Professional Information [NCI]
- Oral Cavity, Oropharyngeal, Hypopharyngeal, and Laryngeal Cancers Prevention (PDQ®): Prevention - Patient Information [NCI]
- Oral Complications of Chemotherapy and Head/Neck Radiation (PDQ®): Supportive care - Health Professional Information [NCI]
- Oral Complications of Chemotherapy and Head/Neck Radiation (PDQ®): Supportive care - Patient Information [NCI]
- Oral Corticosteroids: Care Instructions
- Oral Corticosteroids for Children: Care Instructions
- Oral Glucose Tolerance Test During Pregnancy: About This Test
- Oral Glucose Tolerance Test (OGTT) - Medical Test
- Oral Leukoplakia: Care Instructions
- Oral Rehydration: Care Instructions
- Oral Rehydration for Children: Care Instructions
- Oral Rehydration Solutions for Children
- Orchiectomy
- Orchiectomy: Before Your Surgery
- Orchiectomy for Prostate Cancer
- Orchiectomy: What to Expect at Home
- Orchiopexy for Testicle Torsion: Before Your Surgery
- Orchiopexy for Testicle Torsion: What to Expect at Home
- Orchiopexy for Undescended Testicle
- Organ Transplant
- Organ Transplants
- Organ Transplants: Antirejection Medicines
- Organic Foods
- Organizing Your Medical Records
- Oropharyngeal Cancer Treatment (Adult) (PDQ®): Treatment - Health Professional Information [NCI]
- Oropharyngeal Cancer Treatment (Adult) (PDQ®): Treatment - Patient Information [NCI]
- Orthognathic Surgery for Malocclusion
- Orthopedic Hardware Removal: What to Expect at Home
- Orthopedic Surgery for Cerebral Palsy
- Orthostatic Hypotension: Care Instructions
- Orthotics for Foot Problems
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Top of the page- Osgood-Schlatter Disease
- Osgood-Schlatter Disease: Exercises
- Osgood-Schlatter Disease in Children: Care Instructions
- Osteitis Pubis: Care Instructions
- Osteoarthritis
- Osteoarthritis: Exercising With Arthritis
- Osteoarthritis: Heat and Cold Therapy
- Osteochondritis Dissecans of a Joint
- Osteomyelitis: Care Instructions
- Osteopathic Medicine
- Osteoporosis
- Osteoporosis
- Osteoporosis: After Your Fracture (video)
- Osteoporosis: Care Instructions
- Osteoporosis in Men
- Osteoporosis Risk Factors
- Osteoporosis Risk in Younger Women
- Osteoporosis Screening
- Osteoporosis: Should I Have a Dual-Energy X-Ray Absorptiometry (DXA) Test?
- Osteoporosis: Should I Take a Bisphosphonate?
- Osteoporosis: Should I Take Bisphosphonate Medicines?
- Osteoporosis: Treatments
- Osteosarcoma and Undifferentiated Pleomorphic Sarcoma of Bone Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Osteosarcoma Treatment (PDQ®): Treatment - Patient Information [NCI]
- Osteotomy for Osteoarthritis
- Ostomy Care
- Ostomy Care: Care Instructions
- Ostomy Diet: Care Instructions
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Top of the pageO V
Top of the page- Ovarian Cancer
- Ovarian Cancer: Care Instructions
- Ovarian Cancer: Should I Have My Ovaries Removed to Prevent Ovarian Cancer?
- Ovarian Epithelial, Fallopian Tube, and Primary Peritoneal Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Ovarian Epithelial, Fallopian Tube, and Primary Peritoneal Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
- Ovarian, Fallopian Tube, and Primary Peritoneal Cancer Prevention (PDQ®): Prevention - Patient Information [NCI]
- Ovarian, Fallopian Tube, and Primary Peritoneal Cancers Prevention (PDQ®): Prevention - Health Professional Information [NCI]
- Ovarian, Fallopian Tube, and Primary Peritoneal Cancers Screening (PDQ®): Screening - Health Professional Information [NCI]
- Ovarian, Fallopian Tube, and Primary Peritoneal Cancers Screening (PDQ®): Screening - Patient Information [NCI]
- Ovarian Germ Cell Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Ovarian Germ Cell Tumors Treatment (PDQ®): Treatment - Patient Information [NCI]
- Ovarian Low Malignant Potential Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Ovarian Low Malignant Potential Tumors Treatment (PDQ®): Treatment - Patient Information [NCI]
- Overactive Bladder
- Overcoming Frustration and Anger
- Overfeeding a Baby
- Overflow Incontinence
- Overnight Dexamethasone Suppression Test - Medical Test
- Over-the-Counter Medicine Precautions
- Over-the-Counter Medicines for Allergies
- Overtraining
- Overuse and Repetitive Motion Injuries: Care Instructions
- Overuse Injuries