What are Varicose veins?

Varicose veins are superficial, large twisted blood vessels and can be seen easily on legs; they are similar like spider veins but larger than spider veins with more than 3mm in size. By continual backward pressure of blood flow in veins and amass/cumulate for a long period of time can weaken the walls of vessels and often develop buckling on the surface of the skin, These twisty and bulgy veins caused by standing for long period of time as many days of week but in some people they develop due to hormonal changes .
Usually, some women suffer during pregnancy such kind of distorted veins with red, blue and some of purple colour called varicose veins or spider veins. It can be treated with laser treatment; some large varicose veins will become dark and gradually will be disappear with few laser treatment sessions.