Warning Signs Of Venous Insufficiency
Thickened Skin On Legs Or Ankles

If venous insufficiency continues for a long time, thickened skin could form on the legs or ankles. Patients may notice these texture changes on the lower legs, and they could affect one or both legs. The thickening of the skin is often accompanied by inflammation in the affected area, and patients could notice varicose veins and swelling of the legs and ankles as well.
Thickened skin in these areas could make walking, wearing certain footwear and exercising more painful. Since these types of skin changes may indicate a variety of medical conditions, patients who notice them should see their primary doctor for an evaluation. Tests such as a duplex ultrasound may be necessary to evaluate the direction and speed of blood flow, and some patients may need a venogram. Areas of thickened skin should be monitored closely for changes, and these should be promptly evaluated by a physician.
Changes in Skin Color

Venous insufficiency causes pressure to buildup inside of the veins in the lower legs, and this triggers changes in skin color. Small capillaries in the legs burst open, and the overlying skin turns a reddish-brown color. Changes in skin color associated with venous insufficiency are typically noticed around the ankles at first, and they can progress to other parts of the legs. Since reddening of the skin in this area could be indicative of a blood clot, patients who notice this symptom should seek urgent medical care.
Doctors may need to perform blood tests and imaging studies to determine the underlying cause of the skin discoloration. Patients who have already been evaluated should continue to monitor their skin for changes in color. They may want to do this by taking periodic photographs of the affected area to look for any increase in the size of the discolored area or any increasing redness. Once skin discoloration occurs, it could lead to the formation of leg ulcers, and patients will need to check their skin regularly for these. In particular, patients with diabetes should ensure they examine their skin thoroughly and report any changes promptly.