Health Library

Diseases & Conditions
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Multiple Myeloma
Myeloma bone disease is cancer that affects certain white blood cells called plasma cells.
Mastalgia (Breast Pain)
The most common type of breast pain is associated with the menstrual cycle and is nearly always hormonal.
Mitral Valve Prolapse
Mitral valve prolapse is a condition in which blood leaks backward through the mitral valve in the heart. This backflow of blood may result in a heart murmur.
Molluscum Contagiosum
Detailed information on molluscum contagiosum, including causes, symptoms, diagnosis, and treatment
Ménière's Disease
Meniere's disease is a balance disorder caused by an abnormality found in a section of the inner ear called the labyrinth.
Mumps in Adults
Detailed information on mumps, including symptoms, diagnosis, complications, and treatment
Manic Depression/Bipolar Disorder
Manic depression, also known as bipolar disorder, is a type of affective disorder that goes beyond the day's ordinary ups and downs. It is becoming an important health concern in this country.
Major Depression
You may have depression if you have a persistent sad or "empty" mood, or if you find it difficult to concentrate or make decisions.
Migraine Headaches
A migraine headache is unique among headaches because it includes symptoms other than pain. Nausea and vomiting, lightheadedness, and sensitivity to light are common with a migraine.
Medial Epicondylitis (Golfer's and Baseball Elbow)
Other activities that can cause this condition include carrying a heavy suitcase, chopping wood, and using a chainsaw.