Nutrition basics
Learning Center
Circumcision (male)
Learn about the benefits and risks of surgery to remove the skin that covers the tip of the penis.
Cochlear implants
This electronic device improves hearing in people who have severe hearing loss from inner ear damage.
Cognitive behavioral therapy
Becoming aware of inaccurate or negative thinking can help you view challenging situations more clearly and respond to them in a more effective way.
Colectomy
If you're having colon surgery, learn what to expect, the risks and how to prepare.
Colonoscopy
Colonoscopy is one option for colon cancer screening. Find out what to expect during this procedure to examine the inside of your colon.
Colposcopy
Find out why colposcopy is done and what to expect during an exam to diagnose cancer and other problems affecting the cervix, vagina and vulva.
Combination birth control pills
This oral contraceptive contains both estrogen and progestin to keep you from ovulating. These medicines prevent pregnancy and can have other benefits.
Complete blood count (CBC)
Learn what to expect from having this common blood test, why it's done and how to prepare.
Computerized tomography (CT) urogram
Learn more about this imaging exam used to diagnose urinary tract disorders.
Concussion testing and screening tools
These screening tools help measure brain function after head trauma and help athletes at risk of head injuries.
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