Abstract
A statistical analysis was made of patients in the City of Yokohama who visited our clinic for urinary screening tests (stage III by the regulation of Ministry of Education) between June 1985 and Nobember 1989. Among 420 patients (156 males, 264 females) studied, 312 (110 males, 202 females) had abnormal urine findings for the first time. Among them, 141 patients (45.2 %) were diagnosed as having asymptomatic hematuria. Thirty two percent of the patients who were diagnosed in 1985 as those with asymptomatic hematuria were cured or improved within five years, and 23 % who were diagnosed in 1986 were cured or improved within four years.
However, about half of all patients did not return for the follow up study. It is important to find the patients with genitourinary abnormarities in the early stage, and adequate follow up study should be developed.