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Learning Center
Blood donation
Find out what to expect during blood donation and how your blood will be used to help others.
Blood and bone marrow stem cell donation
Learn what these donations involve and what the risks are.
Blepharoplasty
Learn what's involved and the risks, as well as what kind of results you can expect from this eyelid surgery.
Bladder removal surgery (cystectomy)
Learn about new ways to surgically remove the bladder and rebuild another urinary system.
Birth control patch
Learn how to use this type of birth control that delivers estrogen and progestin through a patch you wear on your skin to prevent pregnancy.
Biofeedback
This technique teaches you to control your body's functions, such as your heart rate and breathing patterns. It can be helpful for a variety of health problems.
Bilirubin test
Find out what to expect from a bilirubin test — an important blood test that determines how your liver is functioning.
Biliopancreatic diversion with duodenal switch (BPD/DS)
Learn about a two-part weight-loss procedure that involves making the stomach smaller and reconnecting parts of the small intestine.
Basal body temperature for natural family planning
Learn the steps for tracking body temperature for pregnancy or contraception. Find out when during your menstrual cycle you're more likely to be fertile.
Barium enema
Find out how to prepare and what to expect if your doctor has recommended a barium enema.
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