Venous insufficiency is a condition in which the veins in the lower extremities are unable to properly return blood to the heart. Causes of venous insufficiency include malfunctioning valves and weakened vein walls. This can lead to a variety of symptoms in the legs, such as pain, warmth, tenderness, swelling, heaviness, fatigue, edema, skin changes, and ulcerations. Varicose veins are a sign of venous sufficiency. Anyone with venous sufficiency should get their condition evaluated by a ... [Read More]