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Disease

Canker sore

These small, painful sores form inside the mouth. They have a white or yellow center with a red border. The pain may make it hard to eat or talk.
Disease

Coma

Learn what can cause this state of prolonged loss of consciousness. While a coma rarely lasts longer than a few weeks, some people never wake from one.
Disease

Acute kidney injury

Learn what happens when the kidneys suddenly stop working, what causes this condition and how it's treated.
Disease

Autoimmune hepatitis

This type of hepatitis happens when the immune system attacks the liver with destructive antibodies. Immune-suppressing medicine is the main treatment.
Disease

Primary progressive aphasia

Find out more about this type of dementia that affects the speech and language areas of the brain.
Disease

Viral hemorrhagic fevers

Learn about the symptoms, treatment and prevention of these sometimes deadly diseases.
Disease

Gastrointestinal bleeding

Bleeding from anywhere in your digestive tract is a symptom of a disorder. Bleeding can be hidden or obvious, slight or severe.
Disease

Muscle strains

Minor strains may only overstretch a muscle or tendon, while more-serious injuries may involve partial or complete tears in these tissues.
Disease

Prostate cancer recurrence

Rising PSA after prostate cancer treatment may signal recurrence. Learn how it's diagnosed, what it means, treatment options and outlook.
Disease

Toxic hepatitis

Find out about symptoms and treatment of this liver disease. It's caused by exposure to certain substances, such as alcohol or medicines.
Disease

Popliteal artery entrapment syndrome

Calf pain cramping your style during a workout? Know the symptoms of popliteal artery entrapment syndrome.
Disease

Gangrene

A severe bacterial infection or lack of blood flow can cause body tissue to die. Know the warning signs and symptoms of this life-threatening condition.

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