What are blood clots and what causes them?
When we’re injured, our body stops the bleeding by forming a clump of blood (a blood clot) that closes the wound. The blood clot also prevents germs from getting into the wound.
Sometimes blood clots form in the bloodstream even though there are no external injuries. If a blood vessel is blocked by a blood clot, dangerous complications like thrombosis or a stroke can occur. That very rarely happens in healthy people. But certain illnesses and risk factors increase the likelihood of blood clots forming and causing complications. Blood-thinning medications (anticoagulants) can reduce that risk.