From 392 men examined at a venereal disease clinic, 238 cases of gonorrhea (60.7%) were identified by culturing gonococci, using traditional loop and swab techniques of gathering urethral specimens and a new procedure employing the sediment from a patient's voided urine as a specimen source. In the patients proved to be infected as shown by the more difficult loop and swab cultural techniques, only 5.9% of the urine sediment cultures were negative. Of the cases positive by culture, 18.4% were clinically asymptomatic, a fifth of these being contacts of patients with known gonorrhea. The urine sediment culture method is a valuable new tool in screening for gonorrhea.