Varicose veins are more than just a cosmetic problem: the unsightly bulges might result in serious health problems such as leg ulcers, thromboses or even pulmonary embolisms.
Veins have one-way valves that are designed to close against the backflow of blood. Since veins are thin-walled, this mechanism is essential in order to prevent the pooling of blood in the lower part of every vein.
Although mostly not painful, varicose veins sometimes cause mild-to-moderate pain. In such cases, an achy or heavy feeling occurs in the legs. The pain becomes worse after prolonged standing or sitting. Throbbing, cramping, or swelling can also occur in the lower legs. In some cases, the skin around the varicose veins becomes itchy and discolored.