2013年9月5日 星期四

Varicose Veins

1. What are varicose veins?Veins are the blood vessels that carry blood back to the heart. Varicose veins are abnormally enlarged and tortuous veins that are visible just below the surface of the skin. Smaller veins in the skin itself are sometimes called ‘thread veins’ or ‘spider veins’. Sometimes, spider veins can also be due to underlying varicose veins. It is advisable to seek medical advice for these conditions before complications arise.

2. What causes varicose veins?Varicose veins are due to weakness in the wall of superficial veins, and this leads to stretching. The stretching causes failure of the one-way valves inside the veins. These valves normally only allow the blood to flow up the leg towards the heart. If the valves leak, then blood can flow back the wrong way when standing. This reverse flow (venous reflux) causes increased pressure on the veins, which bulge and become varicose. They may also be caused by occupations that require prolonged standing or weight bearing which increase pressure on the leg veins. They often appear during pregnancy and while they may become less prominent in the weeks after delivery, they tend not to disappear completely. Varicose veins often run in families (the precise form of inheritance is not well understood) and as you get older, they are more likely to occur.



3. How common are varicose veins?Approximately 50 per cent of the population has some form of venous disease, and varicose veins affect up to 15 per cent of all adults. Both men and women can get varicose veins.
4. What problems do varicose veins cause?The raised pressure in the vein system caused by the leaky valves frequently gives rise to aching, throbbing, itching and a feeling of fullness. Inflammation and bleeding from the veins can occur if they are traumatised. The increased pressure can sometimes cause complications such as eczema, brown discolouration, ulceration and scarring.
5. How is the diagnosis of varicose vein make?Besides the requirement of a detailed patient history and physical examination by a specialist doctor, a Duplex Ultrasound Vein Scan can accurately map the anatomy and function of your veins and determine how best to treat them. This is a painless investigation that is performed with the patient standing.
6. What can be done about my varicose veins?Many different treatments are available for varicose veins. No two patients' varicose veins are quite the same so treatment plans should be tailor-made by a specialist doctor who is experienced in treating leg veins.

Reference information: http://veno.com.hk
It is not intended as medical advice to any specific person. If you have any need for personal advice or have any questions regarding your health, please consult your doctor for diagnosis and treatment.

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