Varicose veins are enlarged, twisted veins that commonly develop in the legs due to weakened or damaged vein valves. They may cause symptoms such as pain, swelling, heaviness, aching, itching, or leg fatigue, although some people may have no symptoms. Diagnosis is based on a clinical examination and may be confirmed with a duplex ultrasound to evaluate blood flow. Treatment depends on the severity of the condition and may include lifestyle changes, compression therapy, minimally invasive procedures, or surgery. Appropriate management can help relieve symptoms, improve circulation, and reduce the risk of complications.