Thrombocytopenia?

how often does thrombocytopenia occur? how many people?
what are the names of the people that take care of people with thrombocytopenia?

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.

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)

Treatment depends on the cause of the condition. In some cases, a transfusion of platelets may be required to stop or prevent bleeding.

Thrombocytopenia can happen anytime and last for any length of time depending on the cause. Hematologist take care of the problem.