Teen health
Learning Center
Cholesterol test
Measuring the amount of cholesterol and triglycerides in your blood can help predict your risk of blocked arteries in your heart and brain.
Chorionic villus sampling
Find out about this prenatal test that can uncover chromosomal and other genetic conditions early in pregnancy.
Cochlear implants
This electronic device improves hearing in people who have severe hearing loss from inner ear damage.
Colectomy
If you're having colon surgery, learn what to expect, the risks and how to prepare.
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.
Contraceptive implant
Learn about the benefits, risks and effectiveness of this type of long-acting, reversible birth control.
Contraceptive sponge
Learn about this birth control option that prevents pregnancy by blocking sperm from entering the uterus.
Copper IUD (ParaGard)
A copper intrauterine device offers a hormone-free option for long-acting, reversible birth control.
Cordocentesis
Find out how this prenatal test uses umbilical cord blood to check for genetic disorders and infections.
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