The folk term “old rotten leg” is known as polyposis in Chinese medicine, which is mainly a chronic skin ulcer in the lower and middle calves. However, at the beginning of the disease, the patient often feels soreness and fatigue in the lower limbs, and some have edema in the back of the foot or the ankle joint, and the symptoms worsen after standing and walking for a long time. If left untreated, the skin of the lower leg and ankle will become rough, atrophied, thin and shiny, with sparse sweat hair, darkening and pigmentation, eczema, flaking from time to time, itching, and even ulcers. At the beginning of the ulcer may only be inflammatory material oozing, and then the skin ulcerated, the old is not good, the bigger the rot, the deeper the rot, and eventually the whole layer of skin rotten, ulcers can even be serious cancer. Once the ulcer occurs, the bone is exposed, and it is easy to infect the surface to the depths, forming chronic osteomyelitis and finally having to amputate the leg. Many patients suffer from ulcers, years, more than a decade of long delay, suffering. Why does the “old rotten leg” not work for a long time and never heal? Chinese medicine believes that the occurrence of this disease is due to the patient’s congenital endowment deficiency, weak veins, coupled with long standing, long walking, squatting, sitting, overwork, or by wind and cold, wet paralysis invasion, resulting in the lower limbs of the veins and collaterals are not smooth, local qi and blood run abnormal, coupled with the damp heat of the evil forced down, qi stagnation and blood condensation, containing brew into sores. Local skin scratching, bruises, insect bites, burns, wet sores, etc. can be the triggering cause of this disease. Western medicine believes that the weakness of the venous walls of the patient’s lower extremities, venous valve defects, and elevated pressure within the superficial veins are the main causes of the disease, which is related to genetic factors. Any acquired factors that strengthen the effect of gravity can damage the venous valve closing function, especially the traffic branch venous valve function, and cause increased intravenous pressure, increased stasis, complicated by infection, ulceration and become chronic ulcers. Such as traffic police, teachers, hairdressers, seamen, doctors, nurses and people who are engaged in long-term standing or sedentary occupations, are prone to this disease. In short, the root cause of “old rotten leg” is poor venous reflux and long-term blood stasis. However, there are two misunderstandings in the treatment of many patients. Misconception one, many patients have misconceptions about the disease, thinking that the lower limb ulcer is only a local problem of the lower limb ulcer, only for the lower limb ulcer to seek medical help and treatment; misconception two, patients in the treatment is only the use of pure Western medicine surgery treatment or single use of Chinese medicine internal treatment or external medicine, such treatment is only one-sided, is not from the root of the disease to make the “old rotten leg” completely cured. The most ideal and effective treatment is Chinese and Western medicine. The most ideal and effective treatment method is the combination of Chinese and Western medicine comprehensive treatment method. It mainly includes: first, surgical treatment to deal with the diseased blood vessels, second, Chinese medicine and combined Chinese and Western medicine treatment to deal with the ulcer wound, and third, mutual cooperation between doctors and patients to actively prevent disease recurrence and promote functional recovery. Surgical treatment is divided into two categories: one is the traditional open-incision method, commonly known as “skinning”, which is complicated and time-consuming to deal with diseased blood vessels, with many incisions, heavy trauma, great pain, long hospitalization, slow recovery, post-operative scars, unsightly, and many complications, etc. Therefore, fewer and fewer patients take this surgical method. Another type of minimally invasive methods: the main representative methods such as microwave endovascular treatment, through the closure of the lesion of the large (small) saphenous vein, varicose veins, traffic veins, to improve the venous reflux of the lower extremities, lower extremity blood stasis, treatment of the disease; at the same time for patients with eczema, skin pigmentation, skin ulcers, post-operative with heat and dampness, blood circulation, elimination of corruption and muscle internal and external use of traditional Chinese medicine, can promote the healing of skin ulcers faster. It can promote the healing of skin ulcers faster and obtain the effect of disease cure. Clinically, we often encounter the situation that after minimally invasive surgical treatment, those small and shallow ulcers grow naturally, and those ulcers that have been untreated for a long time also shrink and become shallow quickly, which can be said to have immediate effect. However, after the surgical treatment of the diseased blood vessels, not everything is fine, but the ulcer wound needs to be treated with a combination of traditional Chinese medicine and Chinese and Western medicine. Before treatment After treatment