thrombocytopeniaListen to pronunciation(THROM-boh-sy-toh-PEE-nee-uh)A condition in which there is a lower-than-normal number of platelets in the blood. It may result in easy bruising and excessive bleeding from wounds or bleeding in mucous membranes and other tissues.More InformationBleeding and Bruising (Thrombocytopenia) and Cancer TreatmentSearch NCI's Dictionary of Cancer TermsStarts withContainsBrowse:ABCDEFGHIJKLMNOPQRSTUVWXYZ#