Results of treatment of 158 patients aged from 17 to 26 years with pyonecrotic complications of diabetic angiopathies are presented. Classification is proposed taking into account characteristics of purulent lesions (local, general, progressive), state of circulation in the damaged limb (major or collateral) and severity of ischemia for choice of treatment policy. Thanks to a sound policy based on these data recovery with limb safety was achieved in 130 (82.3%) patients, including 55 patients who had undergone reconstructive vascular operations or lumbar sympathectomy. High amputations were performed in 28 (17.6%) patients, in 12 of them--on the crus, and in 16--on the thigh. There were no lethal outcomes.