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Diseases & Conditions

Abdominal aortic aneurysm

An aneurysm in the lower part of the aorta can grow slowly and silently. Know…

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Absence seizure

This type of seizure produces symptoms such as a vacant stare, lip smacking and eyelid…

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Acanthosis nigricans

Learn about the causes of and treatment for this condition that causes dark, velvety patches…

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Achalasia

In this condition, the muscles in the esophagus don’t relax, preventing food and drink from…

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Achilles tendinitis

Achilles tendinitis — Comprehensive overview covers symptoms, causes, treatment of this overuse injury.

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Achilles tendon rupture

An Achilles tendon rupture is an injury that is usually painful and likely to affect…

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ACL injury

Learn about this injury that affects one of the main ligaments in your knee and…

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Acne

Learn more about this common skin condition, including causes, treatments and simple skin care steps…

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Acoustic neuroma

This noncancerous tumor can sometimes grow on the nerve in the head that affects hearing…

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Acromegaly

An excess of growth hormone causes the bones to keep growing, which can lead to…

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Actinic keratosis

Find out more about this skin condition that causes a rough, scaly patch after years…

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Acute coronary syndrome

Know the symptoms, causes and treatment of this heart condition. The term refers to many…

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Acute flaccid myelitis (AFM)

Know the possible symptoms of acute flaccid myelitis (AFM), a rare but serious condition that…

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Acute kidney injury

Learn what happens when the kidneys suddenly stop working, what causes this condition and how…

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Acute liver failure

A rapid loss of liver function can happen in people who don’t even have liver…

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Acute lymphocytic leukemia

Learn about this cancer that forms in the blood and bone marrow. Treatments include medications…

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Acute myelogenous leukemia

Learn about this cancer that forms in the blood and bone marrow. Treatments include medicines…

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Acute sinusitis

Learn the latest ways to treat and prevent the stuffy nose and head pain that…

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Addison’s disease

Learn about this rare but serious condition of the adrenal glands that’s treated by replacing…

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Adenomyosis

Displaced endometrial tissue from adenomyosis can cause an enlarged uterus and painful, heavy periods.

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Adjustment disorders

These are unhealthy reactions to stress that involve emotions and behavior. The response to stress…

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Adrenal cancer

Learn about this rare cancer that begins in the adrenal glands. Find out about symptoms,…

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Adrenoleukodystrophy

Find out about diagnosis and treatment of adrenoleukodystrophy — a hereditary disorder that affects the…

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Adult attention-deficit/hyperactivity disorder (ADHD)

This mental health disorder includes a combination of persistent problems, such as difficulty paying attention,…

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Adult Still disease

Learn about symptoms, complications and treatment of this inflammatory disorder.

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Age spots (liver spots)

Learn more about the harmless dark spots on your skin that tend to appear as…

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Agoraphobia

Agoraphobia is an anxiety disorder in which you fear and avoid public places or situations…

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Airplane ear

That fullness in your ear when on an airplane that’s climbing or descending results from…

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Albinism

In this group of inherited disorders, the body makes little or no melanin, a pigment…

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Alcohol intolerance

Having an immediate reaction after drinking alcohol, such as a stuffy nose and skin flushing,…

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