Does essential thrombocythaemia cause easy bruising?

Essential thrombocythaemia is a blood disorder in which the bone marrow makes too many platelets. Platelets help control bleeding, but a very high or poorly functioning platelet population may not form clots normally. This can lead to easy bruising, nosebleeds, gum bleeding, or heavier menstrual bleeding. The same disorder can also increase clotting risk, so symptoms can vary. Easy bruising has many other explanations, including medicines, low platelets, liver disease, and inherited bleeding conditions; a blood count and clinical history help separate them.

Tell your doctor about new or increasing bruises, bleeding, headaches, visual changes, or medicines such as aspirin and anticoagulants. Do not start or stop a blood-thinning medicine without professional advice. Photograph unfamiliar bruises and record nosebleeds or gum bleeding to support the assessment. A clinician may arrange blood tests and review your treatment plan. Read more about [Easy Bruising](/symptoms/easy-bruising/).

Seek urgent help for bleeding that will not stop with firm pressure, vomiting or coughing blood, black stools, severe headache, weakness on one side, sudden breathlessness, chest pain, or a painful swollen leg. These symptoms can signal significant bleeding or a clot and should not wait for a routine appointment.

Ask whether your platelet count and platelet function explain the bruising, whether another blood test is needed, and how your medicines affect bleeding. Ask which symptoms suggest a clot, how to manage minor bleeding, and when your next review should occur.