For assessing the long-term outcome of patients after transurethral prostatic resection (TUR-P), telephone interview in terms of the urinary symptom and the sexual function was conducted on 191 cases who underwent TUR-P in Hokkaido University Hospital from 1982 to 1988. Adequate replies were obtained from 137 patients (71.7%), whose mean age was 70.2 years old and mean follow up period was 4.8 years. Subjective urinary symptoms, which are mainly classified as dysuria, frequency and incontinence, were improved in 114/120 (95.0%), 99/108 (91.7%), and 20/21 (95.2%) respectively. Overall symptom-free rates of dysuria, frequency, and incontinence were 85.1% (114/134), 86.6% (116/134), and 90.3% (121/134). Morbidity of incontinence following TUR-P was only 6/134 (4.5%). There was one deaths (0.7%) at 2 weeks after TUR-P, but was not attributable to the operative procedure itself. Although 82 cases (59.9%) had risk factors such as the cardiovascular disease, malignancy or other systemic disorders, they did not jeopardize the postoperative course nor were attributed to the mortality. Uninhibited contraction and/or vesical denervation supersensitivity on perioperative cystometrogram were found in 53/84 (63%). These urodynamic abnormalities were not considered to be postoperative urinary symptoms. Postoperatively, the decrease in libido was noted in 12/63 (19%), but its causal relation to the procedure was obscure in most of the patients. We believe TUR-P can offer a satisfactory outcome in the majority of the patients with minimum risk.