Some time ago, Mr. Liu, a patient with diabetes mellitus combined with gas gangrene of the lower limbs who lived in our department, was discharged from the hospital. At the time of admission, the patient’s left thigh, calf and foot were seriously infected, and part of the tissues were gas gangrene. The patient was admitted with severe sepsis, his blood pressure was maintained by antihypertensive drugs, his consciousness was blurred and his life was in danger. The medical staff did their best, and the patient’s wound gradually healed and recovered. After early wound repair and functional exercise, the patient miraculously got out of bed and walked. How to talk about avoiding serious complications of diabetic foot? All non-traumatic amputation, diabetic foot caused by more than 50%. In addition, according to relevant information, China currently has more than 50 million diabetic patients, of which 20% will develop into diabetic foot syndrome, and 40% of diabetic foot patients need to make amputation surgery. Long-term poor glycemic control, diabetes duration of more than 10 years, do not pay attention to foot hygiene and health care and inappropriate shoes and socks, foot deformity or ulcer history, smoking and drinking and other bad habits of the patient is more common. Diabetic foot is not a complication at the beginning, usually preceded by some of the following discomforts: such as no sweating, hypopigmentation of the lower limbs, abnormal sensation of the lower limbs, especially at the end, walking in a duck step, squatting and standing up difficulties, cold feet, shiny and thinning of the skin of the feet, subcutaneous tissue atrophy, dorsal arterial pulsation weakened or even disappeared, and so on. Once the foot skin appears water scar, blood scar or callus, no matter what causes, also no matter the surface seems to be big or small, if you are not careful to make the skin broken, it will lead to foot ulcers. If you do not pay attention at this time, the ulcer will gradually penetrate from the epidermis to the subcutaneous tissues, muscles, tendons, ligaments until the bones, and eventually lead to gangrene. Avoid amputation. Diabetic foot focuses on prevention: 1. Foot protection. In addition to daily foot washing, foot washing should not be soaked. Also pay attention to the cleaning and trimming of toenails. Trimming toenails should be straight cut, do not bend cut, so as not to cut through the nail bed triggered infection; also do not dig the soft tissue around the toenail, so as to avoid infection. After trimming the toenail, file down any sharp edges or protrusions to avoid piercing neighboring toes. Toenails that grow into the muscle may cause infection. If the toenail is tough and has deformity or thickening, you should go to the doctor for help. 2, the choice of shoes. Shoes should be carefully selected so that they are comfortable to wear, the size is suitable and the toes are not squeezed. Finally wear specialized diabetic footwear. 3.When swelling or infection occurs in the foot, you should rest until it is healed. If you continue to walk, it may aggravate the condition and development. Frequently picking up the affected limb in a horizontal position can improve blood circulation and promote healing. 4, foot circulation is not good patients, can often pick up the lower limbs for a short period of time, such as every hour to elevate a few minutes or so, every day to adhere to the foot and leg movement, can also improve the local circulation. If you can not adhere to the movement due to illness, you can move your feet and toes in bed, make up and down, left and right, or ring around the activities, you can also try to stand on tiptoe with your toes. When sitting, do not press one leg on the other or press the knee against the knee, as this is not conducive to blood circulation. Lastly, if you are unfortunate enough to suffer from foot ulcers, you should take the last chance to see a specialist as soon as possible and actively cooperate with the treatment. If you are too considerate of the cost of the moment and “go soft”, once the diabetic gangrene stage, the consequences will be serious. In short, prevention is more important than treatment. In order to prevent the tragedy of amputation from recurring, please pay more attention to diabetic patients.