by Internet Medical Society
Veins form a complex circuit with arteries and capillaries within our body. They are responsible for the flow of blood to and from different parts of the body. Veins are responsible for carrying deoxygenated blood back to the lungs and heart for oxygen.
Sometimes, these veins may have stems that fail to circulate blood properly. In this case, these veins start bulging and can be seen from the surface of the skin.
These bulging veins are known as varicose veins and can cause symptoms such as tiredness or throbbing pain in the infected limbs. These veins can often burst or form ulcers on the skin if the condition becomes severe.