Ejaculatory disorders are one of the most frequent sexual dysfunction. To study this problem in different climatic regions, we made a population-based trial with participation of 543 Russian men (149 from the south of Russia, 394 from Siberia). Correlation of ejaculatory disorders with IELT duration, a testosterone level, comorbid chronic prostatitis was estimated. We found that 59.2% of young men had normal ejaculation but only 20% of men over 50 years of age. In the latter group of patients delayed ejaculation predominated. 43.6% of the southerners and 33.5% of the Siberians had premature ejaculation, and 6.1 and 16.9%--delayed ejaculation, respectively; 26.7 and 31.2% were hypogonadal, respectively. Ejaculation was normal in 74.6% men with a normal testosterone level. Hypogonadal patients had premature ejaculation in 48.2% cases, delayed ejaculation in 28.3%. Of the total 543 men, 67.2% had chronic prostatitis. Only 46% of patients with chronic prostatitis had normal ejaculation, 43.3% had premature ejaculation and 10.7% had delayed ejaculation. Thus, in cold climate delayed ejaculation occurs more often, in the South premature ejaculation predominates. A low testosterone level as well as chronic prostatitis resulted in ejaculatory disorders. There are significant differences in ejaculation between young and old men, whose living in the South and Siberia, eugonadal and hypogonadal. Therefore, when characterizing a copulative act as "normal" it is necessary to take into account age, comorbidity, region of living and other factors.