Venous disease can refer to a wide range of conditions including but not limited to blood clots; deep vein thrombosis; phlebitis; chronic venous insufficiency; varicose and spider veins; and leg, foot and toe ulcers. Such disorders occur when the interior walls of certain veins have been broken down and the small valves that control the direction of blood flow are insufficient or dysfunctional. Potential symptoms of a venous disease include discolored skin, an open venous leg ulcer, dermatitis, cramping in the calf muscles, and swelling. Many times these issues can be resolved via in-office therapies such as laser therapy, sclerotherapy and vein removal procedures. Treatment of venous diseases depends on the specific issue at hand. For example, while surgical removal or sclerotherapy can be provided for varicose veins, the valves of those veins are not able to be replaced or repaired. But valve repair may be an option for post-thrombotic syndrome or other types of deep venous incompetence.