What should I do if my lower extremity ulcers caused by diabetes always do not heal? For a long time people have been wrong about the treatment of diabetic ulcer infections, and one of the reasons for this result is the lack of understanding of the diabetic foot and the use of the same method of treatment for different types of gangrene, which certainly does not work. There are many such cases, so today I will briefly discuss the types of gangrene and the corresponding treatment considerations. First of all, according to the etiology and symptom classification can be generally divided into neurological, ischemic and neuroischemic types, while the neuroischemic type is the most common in clinical practice. All types have certain symptoms shown in the early stage, so if you have the following symptoms in your feet, you must seek medical treatment in a timely manner. Regarding the treatment of neurogenic gangrene: If there is a numbness in the foot, or a painful, burning sensation like pins and needles, it is generally a neuropathy. The feet of such patients are generally warm but dry, sometimes accompanied by itching, no sweating, edema and other symptoms. In severe cases, the sensation in the foot disappears, at which point it is easy to burn, abrade or stab without feeling pain. Such patients can still avoid infection if treated in time, but often because of insensitive sensation, it is difficult to detect abnormalities in time, and by the time they are found, they are often already serious. For the treatment of this type, in addition to the comprehensive treatment of local wound debridement, infection control, and removal of decay and muscle growth, special attention must be paid to the improvement of nerve function. Treatment of ischemic gangrene: Ischemic gangrene with vascular lesions of the lower extremities is often manifested by cold feet, skin color changes, and most patients will have intermittent claudication or resting pain. Such patients generally have infection as a prominent symptom, which is relatively more difficult to control because of ischemia. Therefore, on the basis of comprehensive treatment, attention should be paid to the control of infection, and I will systematically address the idea of infection control in the concluding section. Treatment of mixed gangrene: As the name implies, mixed gangrene has both neuropathy and ischemia, usually with infection as the most prominent feature, and is also accompanied by numbness, chills, and pain in the extremities. This treatment should also focus on nerve nutrition and circulation improvement, but of course infection control is also necessary. Here I will summarize the control of infection: first of all, the patient should be diagnosed, typed and graded to find out the cause of the disease and develop the respective corresponding treatment. One of the key points is to clear the wound, because the infected necrotic tissue contains a large number of germs with a large load and fast reproduction, which is one of the main reasons why the infection is difficult to control. In this case, it is necessary to do a good job of debridement, which means that the infected and necrotic inflammatory tissues are cleaned up, nibbled and cleared with each change of medication, so that the number or type of germs can be reduced and the infection can be easily controlled. It is also advisable to extract the secretions for bacterial culture before the patient is treated and, if necessary, to use the appropriate antibiotics according to the results, which are allowed in the treatment, but remember to use them blindly. The above is about the treatment of different types of gangrene and some of the precautions to be taken. We hope that you will learn more about your condition so that you can also identify problems and make adjustments in time for treatment. If you are led by the nose, there is a good chance that the symptoms will get worse.