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Learning Center
Bicuspid aortic valve
This condition, present at birth, affects the valve between the lower left heart chamber and the body's main artery. Know the symptoms and treatment.
Bent penis
Learn what can cause a curved erection and when you may need to see a health care provider.
Benign prostatic hyperplasia (BPH)
This common problem, also known as an enlarged prostate, can be treated.
Belly fat in women: Taking — and keeping — it off
Belly fat is more common after menopause. Find out why and learn how to keep it off.
Belly fat in men: Why weight loss matters
Belly fat can be dangerous. Understand why and how to get rid of it.
Belching, gas and bloating: Tips for reducing them
Find out how you can lessen uncomfortable belching, gas and bloating.
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.
Basal cell carcinoma
Learn about symptoms, treatment and prevention of this common skin cancer that often occurs on the head and neck.
Balance exercises
Balance exercises can improve your balance and help prevent falls. See how they're done.
Bacterial vs. viral infections: How do they differ?
Understand the differences between bacterial and viral infections.
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