Deep venous thrombosis (DVT) refers to a blood clot embedded in one of the major deep veins of the lower legs, thighs, or pelvis. A clot blocks blood circulation through these veins, which carry blood from the lower body back to the heart. The blockage can cause pain, swelling, or warmth in the affected leg.
Symptoms occur in the affected leg when a clot obstructs blood flow and causes inflammation. Symptoms may include the following:
Gradual onset of pain
Warm to touch
Worsening leg pain when bending the foot
Leg cramps, especially at night
Bluish or whitish discoloration of skin
Almost 30-50% of individuals have no complaints