Medicine
Articles about health care, diseases, treatments and medical practice.
Nephrology
Nephrology: the medical specialty focused on kidney health and disease
Neuroblastoma
Neuroendocrine tumor
Neurological disorder
Neurology
Neurology: study and medical practice of the nervous system
Neurosarcoidosis
Neurosurgery
Neurosurgery: surgical care of the brain, spinal cord and peripheral nerves
Nicotine replacement therapy
Nicotine replacement therapy: overview, forms, effectiveness and safety
Nocturnal enuresis
Nocturnal enuresis (bedwetting): causes, evaluation and management
Non-Hodgkin lymphoma
Non-penetrative sex
Non-penetrative sex: forms, safety, history, and distinctions
Nonsteroidal anti-inflammatory drug
Nonsteroidal anti-inflammatory drug (NSAID)
Northwestern Memorial Hospital
Northwestern Memorial Hospital — Chicago academic medical center
Nose-picking
Nose-picking (rhinotillexis) and related behaviors
Nurse
Nurse: Roles, Education, Specialties, and Practice
A nurse is a licensed health professional who provides clinical care, advocacy and health promotion across settings. This article outlines roles, training, specialties, workplaces
Nuss Procedure
Nuss procedure: minimally invasive repair of pectus excavatum
Nyctalopia
Nystagmus
Nystagmus: Causes, Types, Diagnosis, and Management
Obesity
Obesity: causes, measurement, health effects, prevention and treatment
Obstetric fistula
Obstetric fistula: causes, symptoms, treatment and prevention
Obstetrics
Oedema
Off-label use
Off‑label use of prescription drugs
Olanzapine
Ommaya reservoir
Ommaya reservoir: intraventricular access device for cerebrospinal therapies
Oncology
Oncology: The Study and Treatment of Cancer
Online pharmacy
Online pharmacy: how it works, regulations, benefits, risks, and consumer guidance
Ophthalmology
Ophthalmology — the medical and surgical specialty of the eye
Branch of medicine concerned with the anatomy, physiology, diagnosis and treatment of the eye and orbit, including medical therapies, laser procedures, and eye surgery.
Opioid
Oral cancer
Oral rehydration therapy
Oropharyngeal cancer
Oropharyngeal cancer: causes, diagnosis, treatment, and prevention
Orthodontist
Orthopedic cast
Orthopedic cast: purpose, materials, application, care, and history
Osteogenesis imperfecta
Osteopathy
Osteopathy: principles, history, techniques, and clinical uses
Otitis
Otitis: ear inflammation — types, causes, symptoms, diagnosis, and treatment
Ovarian cancer
Ovarian cancer: overview, types, risk factors and management
Over-the-counter drug
Over-the-counter drug (OTC): definition, regulation, and safe use
Overdose
Overweight
Overweight: definition, measurement, causes, health effects and social aspects
Oxycodone
Oxycodone: overview, properties, uses, history and safety
Oxygen therapy
Oxygen therapy: definition, delivery methods, uses, risks and history
Padded cell
Paget's disease
Paget's disease: bone, mammary and extramammary forms
Pain
Pain: nature, causes, types, and management
Pain disorder
Pain disorder (psychogenic chronic pain)
Painful sexual act
Painful sexual act (dyspareunia): causes, diagnosis, and management