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Disease

Auditory processing disorder (APD)

This type of hearing loss involves the brain. Learn about ways that can help people with the condition hear better.
Disease

Autism spectrum disorder

This condition related to brain development causes problems in getting along with others socially and communicating. Symptoms and severity can vary widely.
Disease

Autoimmune encephalitis

Learn how the immune system mistakenly attacks brain cells to cause swelling in the brain related to this group of conditions.
Disease

Autoimmune epilepsy

Learn when epilepsy is an autoimmune disease and why early diagnosis and the right treatment are important.
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

Autoimmune pancreatitis

Autoimmune pancreatitis is a relatively uncommon disease of the pancreas that may be mistaken for pancreatic cancer.
Disease

Autonomic neuropathy

Damage to the nerves that control involuntary body functions, such as blood pressure and digestion, results in autonomic neuropathy.
Disease

Avascular necrosis (osteonecrosis)

A broken bone or dislocated joint can block blood flow to the bone, causing bone tissue to die.
Disease

Baby acne

Baby acne — Comprehensive overview covers causes, symptoms, treatment of this newborn complexion problem.
Disease

Benign adrenal tumors

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

Bicuspid aortic valve

This condition, present at birth, affects the valve between the lower left heart chamber and the body's main artery. Know the symptoms and treatment.
Disease

Bird flu (avian influenza)

Flu viruses in other animals, such as birds, may be a risk to people. Learn more about the symptoms, causes, prevention and treatment for bird flu in people.
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