<unk> s of the legs are often due to varicose veins, though most people with varicose veins do not develop<unk> s.<unk> s of the arms are often due to the placement of intravenous catheters. Many of the risk factors that are associated with<unk>  are also associated with other thrombotic conditions (e.g. DVT). These risk factors include age, cancer, history of thromboembolism, pregnancy, use of oral contraceptive medications (containing estrogen), hormone replacement therapy, recent surgery, and certain autoimmune diseases (especially Behçet's and Buerger's diseases). Other risk factors include immobilization (stasis) and laparoscopy. Hypercoagulable states due to genetic conditions that increase the risk of clotting may contribute to the development of<unk> , such as factor V Leiden, prothrombin 20210A mutation, and protein C, S, and antithrombin III and factor XII deficiency.
Superficial vein thrombosis
Varicose veins
Superficial thrombophlebitis
Popliteal artery aneurysm
Venous ulcer
Septic thrombophlebitis
Pseudothrombophlebitis
Raynaud syndrome