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Tests & Procedures

Benign adrenal tumors

Most of these tumors need no treatment, but some do. Learn about diagnosis and treatment…

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Benign paroxysmal positional vertigo (BPPV)

Learn more about the symptoms, causes and treatment of intense bouts of dizziness.

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Benign peripheral nerve tumor

Learn more about the different types of tumors that grow on or around the nerves…

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Benign prostatic hyperplasia (BPH)

This common problem, also known as an enlarged prostate, can be treated.

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Bent penis

Learn what can cause a curved erection and when you may need to see a…

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Beta blockers

Find out how beta blockers lower blood pressure and when you might need one.

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Beta blockers: Do they cause weight gain?

Weight gain can occur as a side effect of some of these medicines used for…

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Beta blockers: How do they affect exercise?

If you take this medicine, you may need to change your target heart rate during…

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Bicuspid aortic valve

This condition, present at birth, affects the valve between the lower left heart chamber and…

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Bile reflux

This digestive problem tends to develop in people who've had stomach surgery and sometimes contributes…

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Biliopancreatic diversion with duodenal switch (BPD/DS)

Learn about a two-part weight-loss procedure that involves making the stomach smaller and reconnecting parts…

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Bilirubin test

Find out what to expect from this important blood test that checks how your liver…

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Binge-eating disorder

People with this condition often don't feel able to stop eating and may eat larger…

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Biofeedback

This technique teaches you to control your body's functions, such as your heart rate and…

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Bioidentical hormones: Are they safer?

There's no proof that these treatments are safer than standard hormone therapy for menopause symptoms.

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Biological therapy for cancer

Learn about the latest tools, such as T-cell therapy and cancer vaccines, that use the…

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Biopsy: Types of biopsy procedures used to diagnose cancer

Learn about the different ways of collecting suspicious cells to test in the lab to…

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Bipolar disorder

This mental health condition causes extreme mood swings that include emotional highs, called mania, and…

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Bipolar disorder and alcoholism: Are they related?

These disorders often occur together, and they can be a dangerous mix. Having both conditions…

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Bipolar disorder in children: Is it possible?

Bipolar disorder in children and teenagers is possible. Finding it early and treating it can…

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Bipolar medications and weight gain

Some medicines used to treat bipolar disorder can make you feel hungrier or cause changes…

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Bipolar treatment: Are bipolar I and bipolar II treated differently?

Bipolar 1 and bipolar 2 are related mental health conditions, and although treatment is much…

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Bird flu (avian influenza)

Flu viruses in other animals, such as birds, may be a risk to people. Learn…

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Birth control: Can preejaculation fluid cause pregnancy?

This possible cause of pregnancy makes withdrawal a method of birth control you cannot rely…

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Birth control options: Things to consider

There are many types of birth control. Think about these questions before choosing a method.

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Birth control patch

Learn how to use this type of birth control that delivers estrogen and progestin through…

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Birth control pill FAQ: Benefits, risks and choices

The birth control pill is surrounded by misinformation. Get the facts on common concerns and…

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Birth control pills: Harmful in early pregnancy?

If you took birth control pills before you knew you were pregnant, the risks of…

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Birthmarks

Learn to identify types of birthmarks by how the skin looks. Examples include café au…

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Black eye: First aid

How to recognize and provide first aid for a black eye.

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