

Some people are more at risk for deep vein thrombosis than others. This disorder can damage the lungs and reduce blood oxygen levels, which can harm other organs as well.

If a clot lodges in an artery in the lungs, it can block blood flow and lead to a sometimes-deadly condition called pulmonary embolism. “But about 30–40% of cases go unnoticed, since they don’t have typical symptoms.” In fact, some people don’t realize they have a deep vein clot until it causes a more serious condition.ĭeep vein clots-especially those in the thigh-can break off and travel through the bloodstream. Andrei Kindzelski, an NIH blood disease expert. “Deep vein thrombosis has classic symptoms-for example swelling, pain, warmth, and redness on the leg,” says Dr. Deep vein blood clots typically occur in the lower leg or thigh. When a clot forms in a vein deep in the body, it’s called deep vein thrombosis. They develop when blood thickens and clumps together. Taking steps to reduce your chances of a blood clot forming in your veins can help you avoid potentially serious problems.īlood clots can arise anywhere in your body. Blood clots can happen to anyone, anytime. But if your symptoms stem from a blood clot deep in your leg, it can be dangerous. Lots of things can cause pain and swelling in your leg.
