The results of treatment of 354 patients with inflammatory colonic diseases were summarized. Nonspecific ulcerative colitis was diagnosed in 236, Crohn's disease--in 118 of them. There were operated on 83 (23.4%) of patients, including according to absolute indications--16 and the relative indications--67. There were elaborated and introduced an original methods of the operative interventions performance and of the postoperative guidance period. Mortality was 3.9%. Reconstructive-restoring operations were done in 24 patients, good and fair result was achieved in 16 (66.7%) of them. The poor results causes were analysed, indications and contraindications were substantiated as well as the terms of the reconstructive-restoring operations performance.