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Unlike deep vein thrombosis (DVT) or blood clots that form in the deep veins of the legs, the superficial clots associated with varicose veins do not usually travel to the lungs or cause a pulmonary embolism (PE) or blood clot in the lung. 2 DVT/PE is a serious condition and does not usually occur with varicose veins, because varicose veins ...


That’s a blood clot that happens in one of your large veins, usually in your leg. Blood thinners are also used to help prevent clots after a stroke or pulmonary embolism ...


Blood clots that form deep in the veins can cause a number of serious health problems. Strokes, heart attacks, and pulmonary embolisms can be caused when a blood clot that has formed in the veins dislodges and then gets stuck near the heart, lungs, or brain.


Deep vein thrombosis (DVT) occurs when a blood clot (thrombus) forms in one or more of the deep veins in your body, usually in your legs. Deep vein thrombosis can cause leg pain or swelling, but also can occur with no symptoms. Deep vein thrombosis can develop if you have certain medical conditions that affect how your blood clots.


Blood clots can form in veins or arteries. When a blood clot occurs in an artery, it’s called an arterial clot. This type of clot causes symptoms immediately and requires emergency treatment.


However, when blood clots form within blood vessels they can obstruct blood flow, a condition called thrombosis. That could mean trouble. If a clot in an artery breaks free and travels through the circulatory system, it can cause blockages affecting the heart, lungs and other organs—potentially shutting them down. The results can be deadly.


DVT or deep vein thrombosis is a blood clot in the leg. The causes of the condition are many, for example, trauma, prolonged periods of immobility, and advanced age. Signs and symptoms of a blood clot in the leg are redness, swelling, pain, and warmth around the area of the clot. DVT usually can be treated with drug therapy.


Blood clots can occur in both arteries and veins. Blood clots can occur in any artery or vein. When it comes to the veins, only blood clots in the deeper veins are of medical significance. Blood clots in the superficial veins (varicose veins) are of little medical significance.


Superficial varicose veins, like the ones clearly visible beneath the skin, affect about 15 percent of people in the United States [source: USC Center for Vascular Care].For those 50 and older, however, the rate rises to 50 percent [source: National Institutes of Health].If the body mistakes a varicose vein's weakened walls for an injury, a blood clot could form.


Your Guide to Preventing and Treating Blood Clots. Blood clots are a serious medical condition. It is important to know the signs and get treated right away. This guide describes ways to prevent and treat blood clots; symptoms; and medication side effects as well as when to go to the emergency room. ... Blood clots that form in the veins in ...