A total of 499 female patients with acute uncomplicated cystitis were observed and analyzed clinically for age distribution, characteristics of symptoms, bacterial culture of urine, behavioral aspects of recurrent cystitis and others. The patients were between 3 years and 88 years old (average: 43 years) and the majority of patients were from 20 to 69 years old. From 81.1% of the patients Escherichia coli was detected, followed by Staphylococcus spp (11.2%). The major symptoms were pain on urination (421 cases), urinary frequency (421 cases) and residual urine sensation (418 cases). The major causes of cystitis as reported by the patient were fatigue (131 cases), infrequent voiding (114 cases) and exposing the body to coldness (103); only 42 patients reported a relationship between sexual intercourse and cystitis. The patients who had been suffering from "honeymoon cystitis" were significantly inclined to be suffering from acute uncomplicated cystitis again in comparison with those who had not suffered from honeymoon cystitis. There was suggested to be a relationship between sexual intercourse and recurrent cystitis.