SUMMARY
The experience of studying the levels of dehydrotestosterone in the blood of young men with pathospermia is given. It was established that its levels were significantly lowered in men with oligoasthenozoospermia in the background of androgen?deficiency. It has been shown that the determination of the level of dihydrotestosterone and the testosterone-dihydrotestosterone ratio is of diagnostic significance in men with pathosperm??s.