thrombocytopenia

https://doi.org/10.1351/goldbook.11302
Abnormally low concentration of platelets (thrombocytes) in the blood.
Note: Thromocytopenia is an unwanted effect of some drugs and carries an increased risk of spontaneous bleeding.
Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 813 [Terms] [Paper]