A family member had asked a question, their elderly foot wound infection although has not been well, but also did not continue to aggravate, want to know if control does not continue to develop, that is, the cure is not a major impact on the body? How to say na, it is reasonable to say that this is the case, many health problems can be controlled as long as they do not continue to worsen, the development of the disease can be controlled. But the key is, diabetic foot wounds have a characteristic, as long as you can not cure, the surface looks calm, but in essence may gradually erode the healthy tissue, all this is related to the characteristics of diabetes and foot disease itself. First, diabetic patients themselves have the characteristics of difficult wound healing, which is mainly caused by high blood sugar series of reactions, such as the typical cause of changes in osmotic pressure inside and outside the cell, the cell will lose water, immunity and resistance will be weakened, the viability of blood clotting cells is also reduced, the healing ability is also reduced, the wound will not be good all the time. Second, the wound local tissue fluid extravasation, will contain a lot of sugar and nutrients, and these are precisely for the germ breeding provides a convenient condition. The wound has not healed for a long time, then increase the risk of infection will increase. Third, the overall condition of the lower extremity affects the development of the wound. It is important to know that most diabetic foot patients are middle-aged and elderly, and it can be said that the various body functions are reduced, especially the blood transport capacity of the lower extremity. A long history of diabetes and poor long-term control can lead to arteriosclerosis, stenosis and even occlusion of the lower limbs, and a decrease in oxygen saturation, which affects wound healing. The wound is one of several major causes that prevent wound healing. The lack of change in a patient’s wound may be due to autoimmune effects, or it may be that the treatment is intervening temporarily. However, this “balance” is really fragile for the patient, and when it is broken, it can be unrecoverable. In fact, there are many cases where people think that there is no serious problem, and they think that it is optimistic. But then it suddenly deteriorates, how can not be controlled. So such a wound is also an “untimely bomb”, at that point, no one can organize, so this situation must continue to receive treatment. Why is it going in a good direction? According to the cases we have treated, the main cause of the disease is not the right method. For example, just lowering blood sugar, surface rubbing and smearing, and infusion to control infection, while the most critical point of debridement is not done, and that is why the wound does not heal. Therefore, I suggest that when you encounter the problem of diabetic foot treatment, it is best to go to a professional diabetic foot specialist to avoid any missed diagnosis and misdiagnosis.