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39 Search results starting with "O"

Disease

Avascular necrosis (osteonecrosis)

A broken bone or dislocated joint can block blood flow to the bone, causing bone tissue to die.
Disease

Childhood obesity

This complex disease involves having excess body fat early in life, and it can lead to health troubles later. Learn how to protect your child's health.
Disease

Double-outlet right ventricle

In this heart condition present at birth, two major blood vessels aren't attached to the heart in the usual positions. Learn how it's treated.
Disease

Hyperoxaluria and oxalosis

Learn about symptoms, causes, diagnosis and treatment for these rare kidney problems.
Disease

Hyperthyroidism (overactive thyroid)

Understand what happens when your thyroid is overactive and learn about treatment for this condition.
Disease

Intestinal obstruction

A blocked intestine needs prompt medical care. Learn about symptoms and the wide range of causes for this serious but treatable digestive disorder.
Disease

Medication overuse headaches

Using medicines that ease headache pain too often can start causing headaches. Learn about prevention and treatment.
Disease

Myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD)

Learn about the symptoms, diagnosis and treatments for this autoimmune disease that attacks nerve fibers in the body.
Disease

Neuromyelitis optica

Understand more about this condition that affects the spinal cord and eye nerves and is sometimes mistaken for multiple sclerosis.
Disease

Obesity

Obesity isn't just a cosmetic concern. It is a medical problem that increases the risk of heart disease, diabetes and certain cancers.
Disease

Obsessive-compulsive disorder (OCD)

OCD features unwanted thoughts and fears, or obsessions. These obsessions lead to repetitive behaviors, also known as compulsions, that get in the way of daily activities.
Disease

Obstructive sleep apnea

Learn the signs that point to this common and potentially serious sleep disorder. And find out the treatments that can help you sleep better.
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