Varicose veins are twisted, bulging veins that most commonly appear on the legs. When the valves inside your blood vessels leak or malfunction, blood can flow backwards and pool in your veins. As a result, they can become enlarged and varicose.
However, not all varicose veins are visible on the surface. Veins deeper inside the leg can become varicose too, causing uncomfortable symptoms without the physical appearance. The best way to determine whether you have varicose veins is by meeting with a varicose vein doctor in York.