Learn about this brain condition in which brain tissue extends into the spinal canal.
Disease
Chickenpox
Learn more about preventing this once-common childhood illness. Also, find out how to recognize and manage it.
Disease
Chilblains
Learn how to prevent and treat this seasonal skin condition that causes injury to unprotected skin of young women when it's cold but not freezing.
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 is caused by a problem with communication between the brain and the muscles used for speech. Speech therapy can help.
Disease
Childhood asthma
The lungs and airways of children with asthma become inflamed, interfering with daily activities. Some children can have dangerous attacks.
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
Childhood schizophrenia
This severe mental disorder in children involves hallucinations, delusions, and disordered thinking and behavior that can impair the ability to function.
Disease
Chlamydia trachomatis
This common sexually transmitted infection (STI) can lead to serious health problems if left untreated. Learn more about symptoms, treatment and prevention.
Disease
Cholangiocarcinoma (bile duct cancer)
Learn about symptoms, risk factors, diagnosis and treatment, including transplant, for this rare cancer that affects the bile ducts of older adults.
Disease
Cholecystitis
Learn the causes, symptoms, complications and treatment of gallbladder inflammation.
Disease
Cholera
This dangerous but treatable disease causes diarrhea and dehydration. Learn how to lower your risk.