During examination and dynamic endoscopic follow-up of 151 patients suffering from polyps of the stomach of various histological structure with various degree of epithelial dysplasia or without it, different types of treatment were undertaken in 61 patients. The results of the treatment are analysed, the efficacy of different methods of biopsy of polypoid structures and alternative methods of treatment of patients with benign and malignant polyps are evaluated, and the recognition of endoscopic polypectomy as a diagnostic and therapeutic intervention is substantiated.