Tangled blood vessels in the brain affect typical blood flow in this rare condition. Learn more.
Disease
Brain aneurysm
Learn about the symptoms that may occur when a thinning wall of a blood vessel in your brain bulges — and know when to get emergency care.
Disease
Broken ankle
A misstep or twisting injury can cause bones to break. Treatment depends on where the injury is and how bad it is.
Disease
Broken arm
Treatment depends on the site and severity of the injury. Simple breaks might be treated with a sling and ice. Complicated fractures may require surgery.
Disease
Carotid artery disease
Learn about this condition that can lead to a stroke, how it's treated and ways to prevent it.
Disease
Central sleep apnea
Find out how a mix-up in brain signals can affect your breathing during sleep, and learn how this sleep disorder can be treated.
Disease
Child abuse
Child abuse includes physical, sexual, emotional and medical abuse, as well as neglect. Learn about signs, risk factors, how to get help and prevention.
Disease
Childhood apraxia of speech
This speech disorder happens when the brain doesn't communicate properly with the muscles used for speech. Speech therapy can help.
Disease
Childhood asthma
This lung condition causes the airways to swell and narrow, making it difficult to breathe. If it's not managed, some children can have dangerous attacks.
Disease
Coarctation of the aorta
This heart condition is usually present at birth. It's treatable but requires lifelong health checkups. Learn about the causes and treatment.
Disease
Congenital adrenal hyperplasia
This group of inherited genetic conditions limits the adrenal glands' ability to make certain vital hormones.
Disease
Congenital heart disease in adults
A heart problem present at birth may not cause symptoms until adulthood. Learn how adult congenital heart disease is treated and what complications may occur.