Veins are the blood vessels that carries impure and oxygen less blood from body to our heart. The veins those get enlarged and swelled are called as varicose veins. Varicose veins are dark blue and purple, curved veins and generally found or develop in legs, very close to skin surface.

The arteries carry oxygen rich and nutritious blood to the legs also and after giving this pure blood the impure and oxygen less blood return back to the heart. This impure blood from legs to heart is carried by leg veins in opposite direction of gravitational force. These varicose veins have valves those keep track on blood flow so that blood flows in only forward direction.

By contraction and relaxation these valves get opened and closed respectively. Some times due to any stress or stretch on leg muscles these valves loses their power and result is flow of impure blood in wrong or backward direction.

In this case vein walls become weaker and damaged and varicose veins may occur. In mild situations the varicose veins is known as spider veins.

Causes :

A person, who has varicose veins, feels like swelled, heavy legs and also feeling tiredness and aching in legs. Because these varicose veins are found closure to skin so that few small swelled varicose vein clusters may be seen in legs. Color change in leg's skin is also a symptom of varicose veins.

Treatment :

Like all other diseases the treatment and medication of varicose veins will be followed according to seriousness of the diseases. First of all some tests like duplex ultrasound test should be conducted by physician. In severe cases Sclerotherapy is used. In sclerotherapy physicians use chemical injections and try to permanently block the damage veins and then other veins are used to perform the function of damaged veins. Laser treatment is also a way to handle varicose veins by laser beams.