What is a common symptom of thrombocytopenia?

Excessive bruising is a hallmark symptom of thrombocytopenia, which is a condition characterized by an abnormally low platelet count in the blood. Platelets are essential for normal blood clotting; they help stop bleeding by clumping together and forming plugs in blood vessel injuries. When platelet levels are insufficient, even minor injuries can lead to significant bruising, as the body is less able to control bleeding. This manifests as unexplained or easy bruising, often appearing in unusual locations or with no apparent cause.

The other options are not typical symptoms of thrombocytopenia. Frequent headaches may be caused by various other conditions but are not directly linked to low platelet levels. High blood pressure is a cardiovascular issue not related to platelet counts, and jaundice indicates liver issues or hemolysis rather than a direct consequence of thrombocytopenia.