Featured Article: Chickenpox
Chickenpox is a highly contagious viral disease causing hundreds of itchy, fluid-filled blisters. Learn about chickenpox causes, symptoms, tests, treatment and prevention. See more »
a-c library
Diseases and Medical Conditions A - C provides down-to-earth, comprehensive definitions of hundreds of ailments and illnesses beginning with the letters A-C. Each listing identifies causes, incidence and risk factors, notes symptoms, outlines tests and discusses treatments and support groups where applicable.
Adult Still's Disease
Adult Still's Disease information from HowStuffWorks. Learn about causes, symptoms and treatments of Adult Still's Disease.
See more »Agammaglobulinemia
Agammaglobulinemia is low levels of protective immunoglobins. Learn about agammaglobulinemia causes, symptoms, treatment and prevention.
See more »Age-related Hearing Loss
Age related hearing loss is the progressive loss of the ability to hear high frequencies as one ages. Learn about age related hearing loss causes, symptoms, tests, treatment and prevention.
See more »Agoraphobia
Agoraphobia is fear of places where help or escape may not be possible or of being outside alone. Learn about agoraphobia causes, symptoms, tests, treatment and prevention.
See more »Agranulocytosis
Agranulocytosis is a granulocyte insufficiency due to bone marrow failure or impairment. Learn about agranulocytosis causes, symptoms, tests, treatment and prevention.
See more »Aicardi Syndrome
Aicardi Syndrome information from HowStuffWorks. Learn about causes, symptoms and treatments of Aicardi Syndrome.
See more »AIDS
Acquired immune deficiency syndrome (AIDS) is the final HIV virus stage causing severe immune system damage. Learn about AIDS causes, symptoms, tests, treatment and prevention.
See more »Albinism
Albinism is a melanin production defect causing partial or full absence of pigment from hair, eyes and skin. Learn about albinism causes, symptoms, tests, treatment and prevention.
See more »Alcohol Withdrawal
Alcohol withdrawal refers to the fatigue, irritability or anxiety that may occur from sudden alcohol cessation. Learn about alcohol withdrawal causes, symptoms, tests, treatment and prevention.
See more »Alcoholic Cardiomyopathy
Alcoholic cardiomyopathy is when habitual alcohol abuse weakens the heart damaging multiple organs and tissues. Learn about alcoholic cardiomyopathy causes, symptoms, tests, treatment and prevention.
See more »Alcoholic Ketoacidosis
Alcoholic ketoacidosis is when excessive alcohol consumption causes a ketone buildup increasing blood acidity. Learn about alcoholic ketoacidosis causes, symptoms, tests, treatment and prevention.
See more »Alcoholic Liver Disease
Alcoholic liver disease is when prolonged, excessive drinking contributes to liver complications. Learn about alcoholic liver disease causes, symptoms, tests, treatment and prevention.
See more »Alcoholic Neuropathy
Alcoholic neuropathy is when alcohol abuse causes nutritional deficiencies leading to impaired nerve function. Learn about alcoholic neuropathy causes, symptoms, tests, treatment and prevention.
See more »Alcoholism
Alcoholism, alcohol dependence or abuse, is an illness where drinking alcohol interferes with all aspects of one’s life. Learn about alcoholism causes, symptoms, tests, treatment and prevention.
See more »Alkalosis
Alkalosis is when decreased carbon dioxide or increased bicarbonate levels create excess base in body fluids. Learn about alkalosis causes, symptoms, tests, treatment and prevention.
See more »Alkaptonuria
Alkaptonuria information from HowStuffWorks. Learn about causes, symptoms and treatments of Alkaptonuria.
See more »Allergic Conjunctivitis
Allergic conjunctivitis is inflammation or infection of the membrane lining the eyelid from allergens. Learn about allergic conjunctivitis causes, symptoms, tests, treatment and prevention.
See more »Allergic Rhinitis
Nasal allergies or hay fever is caused by a release of histamine triggered by exposure to allergens. Learn about nasal allergies symptoms, tests and treatments.
See more »Allergic Vasculitis
Allergic vasculitis is skin blood vessel damage and inflammation due to an allergic reaction to a drug or foreign agent. Learn about allergic vasculitis causes, symptoms, tests, treatment and prevention.
See more »Allergies
Allergies are exaggerated immune responses or reactions to generally harmless substances. Learn about allergy causes, symptoms, tests, treatment and prevention.
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