A survey conducted by a premier healthcare provider in Mumbai revealed that more than seven percent of the adults in India suffer from varicose veins. Wondering what is it? Varicose veins is a disease in which the veins become abnormally thick enlarged and full of twists and turns. Older people pregnant women and family history are some of the risk factors of varicose veins. However the survey conducted by the Wockhardt Hospital revealed that work that requires standing for long duration causes varicose veins. Besides it was also found that this occurs commonly in the veins of legs and thighs.