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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

Tension headache

These common headaches can be triggered by stress. Healthy habits and medicines can help manage them.
Disease

Common cold

This common illness of the nose and throat causes a stuffy or runny nose, sore throat, and cough.
Disease

Eye floaters

Many people over age 50 experience eye floaters. Learn more about this common problem, including causes, other risk factors and treatment options.
Disease

Medication overuse headaches

Using medicines that ease headache pain too often can start causing headaches. Learn about prevention and treatment.
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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