Common Conditions
Varicose Veins: What veins do
Overview | What
veins do | Surgery | Injections/Foam
| Endoluminal/Laser | Operative
Info Sheet |
Veins are part of the circulation and their function is to
return blood from the peripheries. They contain valves, which
ensure that blood flows in one direction only, back towards
the heart. Varicose veins are abnormally dilated veins which
are visible through the skin. They are usually secondary to
damaged valves, which causes the blood to pool and the veins
to become enlarged and tortuous. They can range from minor
dilatations to large grape like bunches of distended veins.
Varicose veins are common, often hereditary, and can become
worse during pregnancy.
Varicose veins may not be associated with any symptoms. However,
aching in the leg is a common complaint, particularly at the
end of the day. As well as being unsightly they can cause
swelling, itching, cramps and may bleed. They can also occasionally
thrombose, causing a tender, red area, commonly referred to
as phlebitis. In some patients they can cause skin changes
in the lower part of the leg. This ranges from mild to intense
discoloration associated with 'venous eczema' and sometimes
ulceration. |
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A full assessment of your veins, will include a non-invasive ultrasound
scan, to assess blood flow and check for the presence and location
of leaking valves.
Despite the Americanisms, you may find this link at MEDLINEplus®
useful in understanding more about veins.
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