Tween and teen health
Learning Center
Blood donation
Find out what to expect during blood donation and how your blood will be used to help others.
Blocked tear duct
Watery, irritated eyes may occur when your tears can't drain normally. Learn about this common eye condition that affects newborns and sometimes, adults.
Bipolar disorder in children: Is it possible?
Bipolar disorder in children and teenagers is possible. Finding it early and treating it can help.
Biopsy: Types of biopsy procedures used to diagnose cancer
Learn about the different ways of collecting suspicious cells to test in the lab to diagnose cancer.
Bilirubin test
Find out what to expect from a bilirubin test — an important blood test that determines how your liver is functioning.
Bedsores (pressure ulcers)
These areas of damaged skin and tissue are caused by sustained pressure — often from a bed or wheelchair — that reduces blood flow to vulnerable areas of the body.
Barium enema
Find out how to prepare and what to expect if your doctor has recommended a barium enema.
Balance exercises
Balance exercises can improve your balance and help prevent falls. See how they're done.
BRCA gene test for breast and ovarian cancer risk
Find out what to expect if you're considering a blood test to determine if you have an increased risk of breast cancer. Learn what your results might mean.
Axona: Medical food to treat Alzheimer's
Axona — Can a supplement treat Alzheimer's disease?
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