What is it?

A hematoma is a collection of blood, which is not located inside a blood vessel. Hematomas are typically caused due to injury to the blood vessel’s wall. Hematoma can be seen under the skin, but it can also develop inside the body, where it cannot be visible, and if not treated can cause great damage. Those who take blood thinners are at greater risk for hematomas. People who have chronic liver disease, or bleeding disorders such as hemophilia and thrombocytopenia are also at greater risk.

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Additional names

This group contains additional names:
- Hematoma Complicating a Procedure

Signs & symptoms

Accompanying symptoms may include pain, swelling,redness, and bruises. Internal hematomas may present with different symptoms, depending on their location.


Diagnosis is based upon findings from medical history and physical examination. Further evaluation may include blood tests, coagulation panels, and imaging studies.


In most cases, the hematomas heal on their own. Rest, ice packs, compression and elevation may help the healing. There are hematomas that should get urgent medical attention such as subdural or epidural hematomas in the brain.

☝️ This is not a substitute for professional medical advice. Please consult with your physician before making any medical decision.

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