Healthy diets
Learning Center
Cholera
Cholera is a treatable — yet potentially fatal — bacterial disease that causes diarrhea and dehydration. Learn how to lower your risk.
Choroid plexus carcinoma
This rare type of cancerous brain tumor occurs mainly in children under 2. Treatment usually involves surgery and radiation therapy.
Chronic pelvic pain
Ongoing pain in the pelvis can be a symptom of another disease or a condition in its own right. Learn how it's diagnosed and treated.
Circumcision (male)
Learn about the benefits and risks of surgery to remove the skin that covers the tip of the penis.
Clear liquid diet
Need to be on a clear liquid diet? Learn which foods to eat and which foods to avoid.
Coarctation of the aorta
Learn more about the causes and treatment of this usually congenital heart condition that is treatable but requires lifelong follow-up.
Cochlear implants
This electronic device improves hearing in people who have severe hearing loss from inner ear damage.
Cold medicines for kids: What's the risk?
Cold medicines aren't recommended for young children. Here's why.
Color blindness
Is it red or is it green? Learn more about what causes color blindness and how to tell whether or not you can distinguish between certain shades of color.
Common warts
Find out tips for preventing and dealing with this common skin condition that causes small, rough growths on your fingers and hands.
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