Varicose veins are rarely a serious condition because they do not cause problems for most people. They can lead to aching or even ulceration of the legs. However, if the flow of blood through veins becomes worse, problems such as leg swelling may occur.
Phlebitis means inflammation of the veins and it can occur along with clotting of blood inside the affected veins. This is not usually dangerous.
Bleeding: The risk of bleeding worries many people, but this is very rare. It will always stop with firm pressure and the veins can then be treated for such bleeding.
Sores or skin ulcers due to chronic backing up of blood. These sores are usually painful and unpleasant.
Superficial Thrombophlebitis is a blood clot that forms in a vein just below the skin.
Deep Vein Thrombosis is a blood clot in a deeper vein which can cause swelling and redness.
However, Varicose veins sometimes cause no significant symptoms. Only if the blood clot travels to the lungs, it can be deadly. Hence in case of any doubt, one must visit a vascular surgeon who will clear the doubts regarding this.