IMMUNOLOGY

Detailed explanation-1: -A platelet count that falls below the lower limit of normal, i.e., 150000/microliter (for adults) is defined as thrombocytopenia. Platelets are blood cells that help in blood clotting and wound healing-risks associated with thrombocytopenia range from no risk at all to bleeding risks and thrombosis.

Detailed explanation-2: -Decreased production of platelets Factors that can decrease platelet production include: Leukemia and other cancers. Some types of anemia. Viral infections, such as hepatitis C or HIV.

Detailed explanation-3: -Thrombocytopenia may develop if the bone marrow isn’t working normally and doesn’t make enough platelets. Some cancers, such as leukemia, can cause thrombocytopenia. The following cancer treatments can also affect the bone marrow and lead to a low platelet count: chemotherapy drugs, biological therapies or other drugs.

Detailed explanation-4: -A lower-than-normal platelet count is called thrombocytopenia. Some types of thrombocytopenia are immune thrombocytopenia and thrombotic thrombocytopenic purpura. When you have a low platelet count, your blood does not clot normally. You may have trouble stopping bleeding.

Detailed explanation-5: -Thrombocytopenia has many causes. One of the most common causes of low platelets is a condition called immune thrombocytopenia (ITP). You may hear it called by its old name, idiopathic thrombocytopenic purpura.