Diabetes has been ranked as the 3rd most prevalent disease range in China in recent years. According to the latest survey by Chinese scientists, the prevalence of diabetes among Chinese adults is nearly 11.6% and the prediabetes rate is 50.1%. In other words, there are about 113.9 million diabetics in China, and half of the adults are hovering on the edge of diabetes. One of the most common and major complications for diabetics is foot ulcers, commonly known as “diabetic foot”, and about 5-10% of diabetics have foot ulcers of varying degrees, mostly occurring 10 years after the onset of diabetes. For those who have had the disease for more than 20 years, about 45% have neurodegenerative foot lesions, and 1% of diabetic patients are forced to undergo amputation, which is 15 times more likely than non-diabetic patients. The quality of life of patients with severe diabetic foot is extremely poor, and it is very painful to seek medical treatment, especially the long course of treatment and high medical costs, which must be given high priority. A portion of diabetic foot is caused by dystrophic lesions of the peripheral nerves, but there is a large proportion of patients who need to be very alert for arterial occlusive lesions. About 50% of diabetic patients develop atherosclerotic occlusive lesions of the lower extremities 10 years after the onset of the disease, and the prevalence is four times higher than that of non-diabetics. After arterial vascular occlusion, ischemia will occur in the distal foot of the limb, manifested as cold, numb, degenerative changes in the skin of the affected foot, the arterial pulsation of the foot can not be felt, that is, the pulse on the foot can not be taken out, there will be a medically unique phenomenon of intermittent claudication, that is, walking a certain distance or time after the appearance of soreness and pain in the calf muscles, must stop to rest for a moment to relieve. Further development of the ischemic affected foot can be caused by trauma (such as prolonged bed rest, burns, barefoot walking, too tight shoes, etc.) leading to ulcer formation, the diabetic foot ulcer is characterized by no keratinized hard nodes around the ulcer, the bottom is fibrous tissue, not easy to bleed, often painful to touch, and easy to bacterial infection. Once infection occurs in diabetic foot, the consequences are very serious, the mildest manifestation is cellulitis, the skin is red and hot, and in heavier cases, the skin is full of blisters, or even rupture. At this point, bacteria with certain virulence can penetrate the skin and enter the deeper tissues of the foot. In the deep part of the tissue can develop into osteomyelitis, and through the sinus tract to form shallow tissue infection, the resulting inflammatory fluid, can flow down the fascia to the surface of the tissue, chronic infection occurs. When poor drainage of the sinus tract occurs, the acute infection can block the sinus opening and soon produce an intraluminal abscess. In severe cases, this can lead to necrosis of the skin, fascia and muscles of the affected foot, black gangrene of the toes, unbearable pain and sometimes amputation of the toes or lower legs or even thighs. Therefore, to treat diabetic foot, the patient must first assess the patency of the blood vessels in the lower extremities, either through vascular ultrasound, or CT examination of the lower extremity blood vessels, and if arterial occlusion is found, active opening of the blood vessels should be considered first. The traditional method is to perform arterial bypass surgery, using one’s own venous vessels or artificial vessels to reopen a vascular lifeline, and the patient generally needs to be in good physical condition and younger, because the complications and mortality of the surgery are still very high, and the recovery after surgery is also slow. In the past 20 years, with the rise of vascular endoluminal intervention technology in China, the development trend of vascular surgery has also moved from “mega-invasive” to “minimally invasive”, and the vascular problems of diabetic foot can be solved by minimally invasive interventional treatment, which simply means opening the blood vessels through balloon dilation and stent implantation. Simply put, this means opening the blood vessels through balloon dilation and stent implantation, which can be done by making a small 2mm hole at the root of the patient’s thigh. The Department of Vascular Surgery of the Ninth People’s Hospital of Shanghai Jiaotong University School of Medicine has accumulated a lot of experience in the minimally invasive interventional treatment of arterial occlusive diseases such as diabetic foot, and has successfully treated more than 4,000 patients. Whether it is a short segment stenosis or occlusion of the main trunk of the proximal artery of the lower extremity, or a long segment occlusion of the thigh or calf vessels, all can be opened by endovascular intervention techniques. Our department also has professional vascular ultrasound physicians and other foreign advanced equipment such as aspiration of thrombus clots, removal of arterial plaque, and ultrasonic ablation of thrombus to improve the success rate of the revascularization procedures of the lower extremities. For patients with severe foot necrosis, after opening the blood vessels, active toe amputation or half-foot amputation can quickly repair the gangrenous wound, avoid major amputation above the ankle joint, and protect the integrity of the limb to the greatest extent, so that patients can still walk off the crutches later. Having a diabetic foot is not terrible, the key is to understand your own vascular status as early as possible. Patients can teach themselves some simple means of self-examination, feel whether the skin of the foot is cold, whether there is numbness in the toes, to learn to “take the pulse” of the foot, feel whether the arterial pulsation of the foot still exists, walking is not to stop and go, once the foot ulcer, even a little bit of rupture, but also promptly to the vascular specialist, in order to avoid the development of ulcers aggravated, the development of the diabetic foot. In order to avoid the development of ulcers, infection, and even necrosis, and have to go to amputation. According to the latest survey by Chinese scientists, the prevalence of diabetes among Chinese adults is nearly 11.6%, and the prediabetes rate is 50.1%. In other words, there are about 113.9 million diabetics in China, and half of the adults are on the verge of diabetes. Liu Xiaobing, Department of Vascular Surgery, Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine One of the most common and major complications of diabetes is foot ulcers, commonly known as “diabetic foot”, and about 5-10% of diabetic patients have foot ulcers of varying degrees, mostly occurring 10 years after the onset of diabetes. For those who have had the disease for more than 20 years, about 45% have neurodegenerative foot lesions, and 1% of diabetic patients are forced to undergo amputation, which is 15 times more likely than non-diabetic patients. The quality of life of patients with severe diabetic foot is extremely poor, and it is very painful to seek medical treatment, especially the long course of treatment and high medical costs, which must be given high priority. A portion of diabetic foot is caused by dystrophic lesions of the peripheral nerves, but there is a large proportion of patients who need to be very alert for arterial occlusive lesions. About 50% of diabetic patients develop atherosclerotic occlusive lesions of the lower extremities 10 years after the onset of the disease, and the prevalence is four times higher than that of non-diabetics. After arterial vascular occlusion, ischemia will occur in the distal foot of the limb, manifested as cold, numb, degenerative changes in the skin of the affected foot, the arterial pulsation of the foot can not be felt, that is, the pulse on the foot can not be taken out, there will be a medically unique phenomenon of intermittent claudication, that is, walking a certain distance or time after the appearance of soreness and pain in the calf muscles, must stop to rest for a moment to relieve. Further development of the ischemic affected foot can be caused by trauma (such as prolonged bed rest, burns, barefoot walking, too tight shoes, etc.) leading to ulcer formation, the diabetic foot ulcer is characterized by no keratinized hard nodes around the ulcer, the bottom is fibrous tissue, not easy to bleed, often painful to touch, and easy to bacterial infection. Once infection occurs in diabetic foot, the consequences are very serious, the mildest manifestation is cellulitis, the skin is red and hot, and in heavier cases, the skin is full of blisters, or even rupture. At this point, bacteria with certain virulence can penetrate the skin and enter the deeper tissues of the foot. In the deep part of the tissue can develop into osteomyelitis, and through the sinus tract to form shallow tissue infection, the resulting inflammatory fluid, can flow down the fascia to the surface of the tissue, chronic infection occurs. When poor drainage of the sinus tract occurs, the acute infection can block the sinus opening and soon produce an intraluminal abscess. In severe cases, this can lead to necrosis of the skin, fascia and muscles of the affected foot, black gangrene of the toes, unbearable pain and sometimes amputation of the toes or lower legs or even thighs. Therefore, to treat diabetic foot, the patient must first assess the patency of the blood vessels in the lower extremities, either through vascular ultrasound, or CT examination of the lower extremity blood vessels, and if arterial occlusion is found, active opening of the blood vessels should be considered first. The traditional method is to perform arterial bypass surgery, using one’s own venous vessels or artificial vessels to reopen a vascular lifeline, and the patient generally needs to be in good physical condition and younger, because the complications and mortality of the surgery are still very high, and the recovery after surgery is also slow. In the past 20 years, with the rise of vascular endoluminal intervention technology in China, the development trend of vascular surgery has also moved from “mega-invasive” to “minimally invasive”, and the vascular problems of diabetic foot can be solved by minimally invasive interventional treatment, which simply means opening the blood vessels through balloon dilation and stent implantation. Simply put, this means opening the blood vessels through balloon dilation and stent implantation, which can be done by making a small 2mm hole at the root of the patient’s thigh. The Department of Vascular Surgery of the Ninth People’s Hospital of Shanghai Jiaotong University School of Medicine has accumulated a lot of experience in the minimally invasive interventional treatment of arterial occlusive diseases such as diabetic foot, and has successfully treated more than 4,000 patients. Whether it is a short segment stenosis or occlusion of the main trunk of the proximal artery of the lower extremity, or a long segment occlusion of the thigh or calf vessels, all can be opened by endovascular intervention techniques. Our department also has professional vascular ultrasound physicians and other foreign advanced equipment such as aspiration of thrombus clots, removal of arterial plaque, and ultrasonic ablation of thrombus to improve the success rate of the revascularization procedures of the lower extremities. For patients with severe foot necrosis, after opening the blood vessels, active toe amputation or half-foot amputation can quickly repair the gangrenous wound, avoid major amputation above the ankle joint, and protect the integrity of the limb to the greatest extent, so that patients can still walk off the crutches later. Having a diabetic foot is not terrible, the key is to understand your own vascular status as early as possible. Patients can teach themselves some simple means of self-examination, feel whether the skin of the foot is cold, whether there is numbness in the toes, to learn to “take the pulse” of the foot, feel whether the arterial pulsation of the foot still exists, walking is not to stop and go, once the foot ulcer, even a little bit of rupture, but also promptly to the vascular specialist, in order to avoid the development of ulcers aggravated, the development of the diabetic foot. In order to avoid the development of ulcers, infection, and even necrosis, and have to go to amputation.