Varicose Veins - Cause
are enlarged veins that usually occur just under the skin (superficial veins).
Varicose veins are likely to be caused by one or more factors,
- Increased pressure in the leg
- Damage to the leg veins.
- Damage to the valves of
the leg veins.
Varicose veins often run in families. You may be born with
defective valves or weak walls in your veins, or you may develop them later in
Pregnancy is a common cause of varicose veins. During
pregnancy, hormones relax the veins and more blood travels through the veins.
Extra weight and a heavy uterus place pressure on leg veins, too.
Less commonly, varicose veins may be a sign of a more serious problem
that may sometimes need treatment. These serious problems can include:
Blood clots or blockage in the
deep veins or
- Injury to the deep
- Abnormal blood vessels between arteries and veins
(arteriovenous fistulas). A person may be born with these problems or develop
them later in life.
- Tumors (very rarely).
WebMD Medical Reference from Healthwise
February 05, 2010
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