Up to 12-15% couples are infertile. The "responsibility" for infertility rests with the husband in 40-45% cases. The effects of routine drug therapy (n = 95) on a generative function are compared to those of magnetolaser therapy (n = 93) in 188 males with excretory-inflammatory infertility suffering from chronic prostatitis. Low-intensity laser infra-red radiation was used in a permanent magnetic field produced by Azor-2K unit. The magnetolaser therapy more significantly than the routine therapy raised concentration and number of mobile forms of the spermia, reduced their degenerative forms, elevated the level of serum sexual and gonadotropic hormones. In 1 year pregnancy occurred in 41.7 and 55.4% of 83 and 87 families (groups 1 and 2), respectively. The delivery took place in 35.8 and 49.7%, respectively.