- Pregnancy, thrombophlebitis, obesity or congenital predisposition can cause the appearance of varicose veins in the legs, which are especially common among women. When the valves in the veins of the legs do not work properly, the blood that should return to the heart does so with difficulty, producing stagnation in some veins which then become dilated, visible and cause discomfort.
Since varicose veins tend to get larger with time and can become the cause of edema and varicose ulcers in the legs, which often produce a brown pigmentation in the skin, it is important to attend to them medically to prevent a more serious illness. If you have thick visible veins under the skin of the legs, grayish-brown coloration in the ankles/calves or ulcers on the skin of the ankles, you should be receiving medical treatment.
The current techniques for removing varicose veins are fast and effective and can consist of a procedure that uses a laser beam to occlude the dilated vein in a surgical intervention that removes the diseased vein and its collaterals or small unaesthetic varicose veins. A technique is often used that consists of injecting a chemical directly into each superficial varicose venule that causes an inflammation of the venule, which then brings about scarring (sclerosis) of the same.