Medically reviewed by Alicen Nelson, MD, MPH Key Takeaways Lightheadedness or dizziness can be a sign of a blood clot in the lungs, heart, or brain and may lead to fainting in severe cases.Swelling, ...

What is a blood clot? Blood clots normally form after an injury to protect your body from losing too much blood, but they can also develop in an artery or vein even if there is no obvious injury.

A blood clot, formed when blood coagulates, can travel through the bloodstream and block blood vessels. This can lead to cerebral infarction, myocardial infarction, pulmonary embolism, deep vein ...

Deep vein thrombosis (DVT), a common source of pulmonary embolisms, may not always present with obvious pain, redness, or ...

While the concept of blood clots may sound scary, the act of blood clotting is essential for bodily function. "Clotting is a normal and essential bodily process that helps you stop bleeding when ...

Every year, millions of people develop dangerous blood clots in their legs without realizing the life-threatening risk growing within their bodies. These formations, medically known as deep vein ...

Leg pain affects nearly everyone at some point, ranging from routine muscle soreness after exercise to the occasional cramp that resolves quickly. This commonplace nature makes it easy to dismiss leg ...

Some health symptoms are so subtle, you might brush them off as nothing. But they could actually be early warning signs of something serious like a blood clot. The good news? Knowing what to watch for ...

A 26-year-old Canadian man, an avid basketball player, began experiencing persistent swelling and pain in his left lower leg about a year earlier. Over time, the affected skin gradually turned ...