Selective proximal vagotomy (SPV) was performed in 658 patients. Recurrent ulcer was revealed in 6.2% of them. A classification of recurrent peptic ulcer is proposed. An operation was carried out for a second time in 65 patients. Correct techniques of SPV, excision of the ulcer, and stomach draining operations with consideration for the functional condition of the duodenum during the first operation are conducive to marked decrease in recurrences of the ulcerative process.