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Disease

C. difficile infection

Learn more about this diarrhea-causing infection that often occurs after antibiotic use. Many, but not all, people who get it are in health care facilities.
Disease

Geographic tongue

Geographic tongue may look alarming, but it does not cause health issues. Sometimes it can cause tongue pain and make you more sensitive to certain foods.
Disease

Pseudomembranous colitis

This condition causes serious or life-threatening diarrhea. It often follows antibiotic use and often affects people in the hospital for other conditions.
Disease

Iron deficiency anemia

Not getting enough iron can lead to this condition, which can cause tiredness and shortness of breath.
Disease

Valley fever

Learn about symptoms and treatment for this lung infection caused by fungi found in the soil of desert regions.
Disease

Pericarditis

Inflammation of the tissue surrounding the heart can cause sharp chest pain and other symptoms. Know how pericarditis is diagnosed and treated.
Disease

Cluster headache

These painful headaches cause severe pain on one side of the head and tend to occur in bouts called cluster periods.
Disease

Listeria infection

This illness is caused by bacteria that spreads in food. It can be very serious for some people. Learn about symptoms, treatment and tips to prevent it.
Disease

Essential tremor

Learn about this condition that causes uncontrollable shaking and find out how it differs from Parkinson's disease.
Disease

Immune thrombocytopenia (ITP)

Caused by low levels of platelets, symptoms may include purple bruises called purpura, as well as tiny reddish-purple dots that look like a rash.
Disease

Amyotrophic lateral sclerosis (ALS)

This nervous system disease, also known as Lou Gehrig's disease, destroys nerve cells and gets worse over time.
Disease

Peripheral T-cell lymphoma

Learn about this type of non-Hodgkin lymphoma that affects the lymph nodes and can spread to the organs. Find out about symptoms, diagnosis and treatments.
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