Subdural Hematoma

A subdural hematoma is a collection of blood between the dura mater (the brain’s outer covering) and the surface of the brain. It’s typically caused by a head injury that tears bridging veins, causing blood to leak and build pressure on the brain. Subdural hematomas can be developed quickly after a severe trauma or slowly over days or weeks, often after a minor head bump (especially in older adults or those on blood thinners). Symptoms vary based on the size and speed of bleeding but can include headache, confusion, dizziness, nausea, drowsiness, weakness on one side of the body, or loss of consciousness. Diagnosis is usually made with a CT scan.