👉 Varicose veins are caused by weakened or damaged valves within the veins, which allow blood to pool and create increased pressure. This can be due to genetics, prolonged standing or sitting, obesity, pregnancy, or age-related changes in vein structure. The weakened valves may also be a result of injury or inflammation that damages the surrounding tissues. As a consequence, the veins become enlarged, twisted, and often visible just below the skin's surface.
