Q:

How do you know if you have a blood clot in your leg?

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Quick Answer

Symptoms of deep vein thrombosis, in which blood clots usually form in the deep blood vessels of the legs and groin, include a warm leg, red or blue skin, painful or tender leg, or a swollen leg, states the Indiana Hemophilia and Thrombosis Center. Some patients with deep vein thrombosis do not experience symptoms.

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Full Answer

Blood clots cause varying signs and symptoms depending on the part of the body with the blocked blood vessel or whether the clot obstructs a portion or all of the blood vessel, notes the Indiana Hemophilia and Thrombosis Center. In patients with deep vein thrombosis, clots that form in the legs or abdomen's deep veins and partially obstruct the veins sometimes cause faint or no symptoms until the blood flow is considerably obstructed.

Superficial thrombophlebitis causes redness and inflammation along the affected vein, usually in the legs or arms, according to the Indiana Hemophilia and Thrombosis Center. Patients with this type of clotting disorder have clots that partially obstruct blood flow in the affected veins, causing pain and irritation. They also typically experience itchy, tender, or warm legs or arms.

Some patients with superficial thrombophlebitis suffer interrupted sleep due to a burning sensation below the skin's surface, reports the Indiana Hemopilia and Thrombosis Center. Those with swollen veins also sometimes develop a fever.

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