Diabetic foot is a lesion that causes destruction of the foot or lower extremity tissues in diabetic patients due to factors such as diabetic vasculopathy and/or neuropathy and infection. wagner’s diabetic foot grading method, which is divided into 0 to 5 grades. Diabetic foot ulcers cause a serious reduction in the quality of life of patients, and are quite difficult to treat, with long treatment cycles and high medical costs. About 15% of diabetic patients in Western countries will develop foot ulcers during their lifetime, and 6.5% of diabetic foot patients in the United States require amputation each year, more than 10 times the rate of non-diabetic patients. The high incidence of diabetic foot ulcers and high amputation rates seriously affect the lives and health of diabetic patients. Wagner Grade 0: Foot with risk factors for developing foot ulcers, currently free of ulcers. Wagner grade 1: surface ulcers, clinically free of infection. Wagner Grade 2: deeper ulcers, often combined with soft tissue inflammation, without abscesses or infection of the bone. Wagner grade 3: deep infection with bone histopathy or abscess. Wagner grade 4: limited gangrene (toe, heel, or forefoot dorsum). Wagner Grade 5: Total foot gangrene.