Deep leg veins (the light blue veins in the picture) include the iliac, femoral, popliteal, and tibial veins. Superficial leg veins (the dark blue veins) include the greater and lesser saphenous veins.
In deep vein thrombosis, a blood clot (thrombus) forms in a deep vein, usually in the legs. Clots also can form in superficial veins, which are closer to the skin.
Current as of: July 14, 2019
Author: Healthwise Staff E. Gregory Thompson, MD - Internal Medicine Adam Husney, MD - Family Medicine Elizabeth T. Russo, MD - Internal Medicine
Medical Review:E. Gregory Thompson, MD - Internal Medicine & Adam Husney, MD - Family Medicine & Elizabeth T. Russo, MD - Internal Medicine