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Top of the page- Obesity
- Obesity and Pregnancy
- Obesity: Should I Have Weight-Loss Surgery?
- Obesity: Should I Take Weight-Loss Medicine?
- Obesity: Should I Use a Diet Plan to Lose Weight?
- obeticholic acid - Medication
- obinutuzumab - Medication
- Object in the Eye: First Aid
- Object in the Vagina
- Object Stuck in a Child's Airway
- Object Stuck in the Throat
- Objects in the Ear
- Objects in the Eye
- Objects in the Nose
- Obsessive-Compulsive Disorder (OCD)
- Obsessive-Compulsive Disorder: Should I Take Medicine for OCD?
- Obstetric Panel
O C
Top of the pageO F
Top of the pageO L
Top of the page- olanzapine (injection) - Medication
- olanzapine (oral) - Medication
- olaparib - Medication
- olaratumab - Medication
- Olecranon Bursitis (Popeye Elbow)
- olmesartan - Medication
- olodaterol (inhalation) - Medication
- olodaterol and tiotropium - Medication
- olopatadine (nasal) - Medication
- olopatadine ophthalmic - Medication
- olsalazine - Medication
O M
Top of the pageO N
Top of the pageO P
Top of the page- Open Carpal Tunnel Surgery for Carpal Tunnel Syndrome
- Open Gallbladder Surgery for Gallstones
- Open Inguinal Hernia Repair (Herniorrhaphy, Hernioplasty)
- Open Prostatectomy for Benign Prostatic Hyperplasia
- Open Repair Surgery for Abdominal Aortic Aneurysm
- Open Surgery for Kidney Stones
- Open-Joint Arthroplasty for Temporomandibular Disorders
- ophthalmic irrigation (intraocular) - Medication
- Ophthalmoscopy - Medical Test
- opicapone - Medication
- Opioid Use Disorder
- Opioids
- opium preparation - Medication
- Opportunistic Infections in HIV
- Optic Neuritis
O R
Top of the page- Oral Breathing Devices for Snoring
- Oral Cancer
- Oral Cavity, Pharyngeal, and Laryngeal Cancer Prevention (PDQ®): Prevention - Health Professional Information [NCI]
- Oral Cavity, Pharyngeal, and Laryngeal Cancer Prevention (PDQ®): Prevention - Patient Information [NCI]
- Oral Cavity, Pharyngeal, and Laryngeal Cancer Screening (PDQ®): Screening - Health Professional Information [NCI]
- Oral Cavity, Pharyngeal, and Laryngeal Cancer Screening (PDQ®): Screening - 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 Glucose Tolerance Test (OGTT) - Medical Test
- Oral Rehydration Solutions for Children
- Orchiectomy for Prostate Cancer
- Orchiectomy for Testicular Cancer
- Orchiopexy for Undescended Testicle
- Organ Transplant
- Organ Transplants: Antirejection Medicines
- Organic Foods
- Organizing Your Medical Records
- oritavancin - Medication
- orlistat - Medication
- Oropharyngeal Cancer Treatment (Adult) (PDQ®): Treatment - Health Professional Information [NCI]
- Oropharyngeal Cancer Treatment (Adult) (PDQ®): Treatment - Patient Information [NCI]
- orphenadrine - Medication
- Orthopedic Surgery for Cerebral Palsy
- Orthotics for Foot Problems
O S
Top of the page- oseltamivir - Medication
- Osgood-Schlatter Disease
- osilodrostat - Medication
- osimertinib - Medication
- ospemifene - Medication
- Osteoarthritis
- Osteoarthritis: Exercising With Arthritis
- Osteoarthritis: Heat and Cold Therapy
- Osteochondritis Dissecans of a Joint
- Osteopathic Medicine
- Osteoporosis
- 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 Bisphosphonate Medicines?
- Osteosarcoma and Malignant Fibrous Histiocytoma of Bone Treatment (PDQ®): Treatment - Patient Information [NCI]
- Osteosarcoma and Undifferentiated Pleomorphic Sarcoma of Bone Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Osteotomy and Paget's Disease
- Osteotomy for Osteoarthritis
O T
Top of the pageO V
Top of the page- Ovarian Cancer
- 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 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]
- Ovarian, Fallopian Tube, and Primary Peritoneal Cancer Prevention (PDQ®): Prevention - Health Professional Information [NCI]
- Ovarian, Fallopian Tube, and Primary Peritoneal Cancer Prevention (PDQ®): Prevention - Patient Information [NCI]
- Ovarian, Fallopian Tube, and Primary Peritoneal Cancer Screening (PDQ®): Screening - Health Professional Information [NCI]
- Ovarian, Fallopian Tube, and Primary Peritoneal Cancer Screening (PDQ®): Screening - Patient Information [NCI]
- Over-the-Counter Medicine Precautions
- Over-the-Counter Medicines for Allergies
- Overactive Bladder
- Overcoming Frustration and Anger
- Overfeeding a Baby
- Overflow Incontinence
- Overnight Dexamethasone Suppression Test - Medical Test
- Overtraining
- Overuse Injuries
O X
Top of the page- oxacillin (injection) - Medication
- oxaliplatin - Medication
- oxandrolone - Medication
- oxaprozin - Medication
- oxazepam - Medication
- oxcarbazepine - Medication
- oxiconazole topical - Medication
- oxybutynin (oral) - Medication
- oxybutynin (transdermal) - Medication
- oxycodone - Medication
- Oxygen Therapy
- Oxygen Therapy: Using Oxygen at Home
- Oxygen Treatment for Chronic Obstructive Pulmonary Disease (COPD)
- oxymetazoline nasal - Medication
- oxymetazoline ophthalmic - Medication
- oxymetazoline topical - Medication
- oxymetholone - Medication
- oxymorphone - Medication
- Oxytocin
- oxytocin - Medication