How long an elderly person can live with diabetic foot ulcers is not yet supported by specific data, so it is not yet possible to judge. Diabetic foot generally refers to the diabetic foot, under the guidance of the doctor active treatment generally will not affect the patient’s life expectancy, but if not actively treated may affect the patient’s life expectancy. Diabetic foot is mainly caused by diabetic peripheral neuropathy and diabetic vasculopathy. Symptoms such as abnormal foot sensation and foot deformity may occur, and in severe cases, patients may develop ulcers and gangrene. If diabetic foot is actively treated, it usually does not affect the patient’s life expectancy. However, if it is not actively treated, infection, gangrene and other phenomena occur, and amputation is required, then it may affect the patient’s life expectancy. However, due to the influence of individual physique, severity of the disease, treatment effect and other reasons, so at present it is impossible to judge how long the specific time can live. It is recommended that patients with diabetic foot go to the hospital in time and follow the doctor’s instructions for treatment to avoid delaying their condition.