Cephalic vein thrombosis is a blood clot in the cephalic vein in the arm. It occurs when something affects the vein’s blood flow to the heart. The condition generally resolves by itself but can become ...

A pulmonary embolism (PE) occurs when a foreign substance blocks an artery in your lungs, stopping blood flow. It’s usually caused by a blood clot, but can sometimes be due to lipid, air, or tumor ...

The femoral vein, a blood vessel located deep inside each of the thighs, is prone to blood clots. Known as femoral vein thrombosis, a blood clot in the femoral vein or its branches can have serious ...

A subsegmental pulmonary embolism is a blood clot located on a distal, or distant and less central, branch of the pulmonary arteries. Treatment can depend on symptoms and risk factors. A subsegmental ...

When most of us think of a serious medical emergency, we usually think of sudden events such as heart attacks, strokes or serious injuries from a car crash. But some threats develop quietly, with ...

Plus, what to do if you experience them.