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February 10, 2012

Varicose Veins (cont.)

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What causes varicose and spider veins?

The causes of varicose and spider veins are not entirely understood. In some instances, the absence or weakness of valves in the veins may cause the poor venous circulation (blood flow in the veins) and lead to varicose veins. Valves inside veins normally act to ensure that blood in the veins does not go the wrong direction (or backwards) away from the large (deep) veins and the heart. They are mainly located in the perforating and some deep veins.

In other cases, weaknesses in the vein walls may cause the pooling of the blood. The walls of the blood vessels can become weaker and less competent than normal, causing the volume of blood in the veins to increase, leading to varicose veins.

Less commonly, varicose veins are caused by such diseases as:

  • phlebitis (inflammation of the veins),

  • blood clots or any obstruction to blood flow in the veins, or

  • congenital abnormalities of the veins.

Venous disease (disease of the veins) is generally progressive and may not be prevented entirely. However, in some cases, wearing support hosiery and maintaining normal weight and regular exercise may be beneficial.

What are varicose vein symptoms?

Many people with varicose veins do not have any physical symptoms. They may, however, have concerns over the cosmetic appearance of the varicose veins.

Some of the common symptoms of varicose vein include:

Some people may complain of a dull ache and pressure sensation from varicose veins.

Some less common but more severe symptoms of varicose veins may include bleeding, thrombophlebitis (formation of blood clot within the varicose vein), and ulceration of the skin overlying the veins. These complications of varicose veins need to be evaluated by a doctor promptly.


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