Varicose vein disease of the lower extremity, also known as chronic venous insufficiency of the lower extremity, is a common and frequent disease. The main manifestation of varicose veins is that the superficial veins of the affected limbs are bulging, dilated and tortuous, resembling earthworms, generally obvious in the lower legs, but sometimes varicose veins can also be seen in the thighs. Patients can have different symptoms, such as soreness, swelling, pain, tingling, itching, numbness, and the symptoms are aggravated after walking. The lower extremities may show skin atrophy, roughness, pigmentation, eczema, dermatitis, superficial thrombophlebitis, bleeding, etc. In serious cases, the skin ulcerates and does not heal for many years, commonly known as “old rotten leg”, which has certain possibility of malignant transformation. For patients with varicose veins of lower limbs, eczema, dermatitis, hyperpigmentation, subcutaneous tissue sclerosis, superficial thrombophlebitis and refractory skin ulcers of lower limbs (commonly known as “old rotten feet”), the Second Department of Surgery of the Hospital of Traditional Chinese Medicine (combined Chinese and Western medicine surgery) is the first in China to carry out the “varicose veins of lower limbs disease Microwave minimally invasive combined with traditional Chinese medicine treatment technology”. This advanced technology is a leading comprehensive treatment method for varicose veins in lower limbs. Microwave minimally invasive treatment is adopted to treat the diseased blood vessels; Chinese herbal medicine is used internally and externally to treat skin eczema, lower limb skin dystrophy, pigmentation and skin ulcers, combining both the symptoms and the root cause with prevention and treatment. Compared with the traditional open-incision therapy or the treatment method of Chinese medicine alone, this technology is more in line with the treatment trend and trend of modern medicine, with the advantages of no traditional open-incision, less trauma, exact efficacy, less pain, not affecting walking activities, fast recovery, beautiful, and not easy to recur. This treatment method is not only suitable for young and middle-aged patients, but also for elderly patients, and it is especially suitable for patients who have difficulty in tolerating the pain of traditional incision for various reasons.