Thrombocytopenia
Definition
Thrombocytopenia is any disorder in which there are not enough platelets. Platelets are cells in the blood that help blood to clot. This condition is sometimes associated with abnormal bleeding.
Causes
Thrombocytopenia is often divided into three major causes of low platelets:
- Low production of platelets in the bone marrow
- Increased breakdown of platelets in the bloodstream (called intravascular)
- Increased breakdown of platelets in the spleen or liver (called extravascular)
Disorders that involve low production in the bone marrow include:
- Aplastic anemia
- Cancer in the bone marrow
- Infections in the bone marrow (rare)
- Drugs (very rare)
Disorders that involve the breakdown of platelets include:
A.D.A.M., Inc. is accredited by
URAC, also known as the American
Accreditation HealthCare Commission. URAC's accreditation program is
the first of its kind, requiring compliance with 53 standards of quality and
accountability, verified by independent audit.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2005 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.