The reason why septic wounds don’t heal for a long time may be related to the patient suffering from diabetes, kidney disease and other underlying diseases, or it may be due to improper wound treatment, the infection can’t be controlled, but also related to the patient’s own factors. 1. Patients with diabetes, chronic kidney disease and other underlying diseases, the wound healing ability is worse than normal, if the condition is not well controlled, the wound will have a greater impact on the wound, may aggravate the wound infection, resulting in delayed healing of the wound. 2. If the wound is not treated properly, there are foreign bodies or necrotic tissues, or the treatment is not thorough when cleaning and changing the medicine, the drainage is not smooth when bandaging and changing the medicine, and the pus can’t be drained in time to remove cleanly, then the infection is difficult to be controlled, and it will affect the healing of the wound to a large extent. 3. Poor nutritional status and low immune function of the patient is also an important reason why septic wounds do not heal for a long time. It is recommended that such wounds should be thoroughly debrided, dressing changes should be strengthened and improved, effective antibiotics should be taken, underlying diseases should be controlled, nutrition should be strengthened, and immunity should be improved, so as to accelerate the healing of the wounds.