What are the causes of stroke?

Clot vs bleeding: There two types of strokes: embolic (clot) vs hemorrhagic (bleed). Clot can come from the heart (more rarely from leg if u have a hole in yr heart), and from a piece breaking off from wall of cartotid arteries. Bleeding is from damage to the vessel or an aneurysm. Risks: smoking, diabetes, high cholesterol/blood pressure, kidney disease, rheumatologic diseases, hivs etc..Consult doc. Good luck.

Few extra causes: Agree with dr nguyen, but here are a few additional risks: traumatic large vessel dissection, high homocysteine, mthfr mutations, antiphospholipid antibody syndrome, Cocaine and speed abuse, any kind of arteritis or vasculitis, birth control pills in classical migraine pts who smoke.