Deep venous thrombosis

Deep vein thrombosis (DVT) is the formation of a blood clot in a deep vein, most commonly in the legs or pelvis. Symptoms can include pain, swelling, redness, and enlarged veins in the affected area, but some DVTs have no symptoms. [Source: Wikipedia ]

Synonyms
Deep vein thrombosis
DVT
Is A
Venous thromboembolic disease
May Cause
Pulmonary embolism