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Lets see what vein are, vein are a tiny tubes that bring back blood to the heart, what happened is arteries carry blood (which is full of oxygen) from the heart to the other parts of body. However what happens is when the body has used the oxygen in blood it send back to heart through veins, veins have valves which help blood flow in right direction and also check that when the blood passes through valves it does not come back. However, as we grow old our valves become weak and loose, and so some the blood stays in vein instead of moving forward. In addition, the result is the veins swollen up, the swelled vein are Varicose Veins. These swollen veins are just below the skin.
What to look for when one suffering from this disorder, its very prominent dark blue veins bulge out from under the skin and usually are seen in legs and feet. Cause of this leg may pain. Varicose veins can be on the surface or deep. Superficial veins can be seen easily and are swollen. On the other hand deep varicose veins are under the skin and are very painful. Symptoms can include an achy or heavy feeling in your legs and burning, throbbing, muscle cramping and swelling in your lower legs.
We have already discussed about how varicose veins are formed and the major cause is defective valves in the legs. Other conditions that can aggravate this problem are constipation, injury, and pregnancy, to much standing or sitting, or obesity. Some basic things can lessen the pain like exercising and making your affected leg work out more.