Wounds of diabetic patients are not easy to heal, the main reasons are as follows: 1, infection: diabetic patients with wounds with high blood glucose content, and blood glucose is a very good bacterial culture medium, so when the interstitial fluid in the blood glucose content is high, it will breed a large number of bacteria in the wound site, resulting in wound infection, which is not conducive to healing; 2, tissue fluid exudates: diabetic patients with wounds with tissue fluids, the blood glucose content is higher, resulting in the tissue fluid exudates. Tissue fluid extravasation, for the tissue adhesion ability is greatly reduced; 3, peripheral vascular damage: diabetic patients are often associated with peripheral vascular damage, peripheral vascular disease, resulting in poor blood circulation in the wound site, blood supply is not good; 4, insufficient protein synthesis: diabetic patients with long-term fat, sugar, protein metabolism disorders, which will promote the healing of wounds, protein synthesis is insufficient. After the occurrence of diabetes mellitus, blood sugar should be actively controlled. The current clinical emphasis on the five carriages of diabetes treatment are health education for diabetic patients, blood glucose monitoring, nutritional supportive therapy, appropriate exercise, and medication, which includes oral hypoglycemic drugs as well as insulin therapy.