Teen health
Learning Center
Hormone therapy for prostate cancer
Find out what to expect during testosterone-blocking therapy. Learn about choices, including medicines and surgery.
Hormonal IUD (Mirena)
This birth control device gives long-acting protection that can be reversed.
Holter monitor
This wearable device keeps track of the heart's rhythm during daily activities. Learn when you might need one and what to expect.
Hip replacement
Hip replacement may be an option if your hip pain interferes with daily activities and nonsurgical treatments haven't helped.
Hemodialysis
Learn about hemodialysis and the risks and benefits of this procedure to treat kidney failure.
Heart valve surgery
Learn more about surgery to treat heart valve disease, which involves repairing or replacing affected heart valves.
HPV test
This test can help show the risk of cervical cancer. Learn more about how to prepare and what the results may mean.
General anesthesia
This sleep-like state during surgery allows you to undergo major medical procedures without feeling pain.
Facial reanimation surgery
Learn how these procedures can allow people with facial paralysis to regain the ability to smile and make other facial expressions.
Facial fillers for wrinkles
Find out more about facial injections, also called soft tissue fillers, that can temporarily smooth wrinkles.
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