August 2023 in “International journal of impotence research” This study evaluated dermatologists' beliefs and counseling practices regarding finasteride's adverse effects, revealing that while 51% believed it could cause sexual side effects, fewer associated it with depression or infertility, highlighting a need for increased awareness and improved patient counseling.
15 citations
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January 2017 in “Advances in Experimental Medicine and Biology” This review discusses the effects of 5ARI drugs on male reproductive parameters, reporting potential decreases in sperm count and motility more significantly in men with pre-existing oligozoospermia, but does not provide fertility outcomes.
5 citations
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August 1987 in “Andrology” This study found that salivary testosterone levels were significantly lower in oligospermic and azoospermic men compared to normal men, suggesting its potential use in assessing male androgen status.
16 citations
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January 2017 in “Asian journal of andrology/Asian Journal of Andrology” This study found that older age at puberty may be associated with lower semen quality and altered reproductive hormone levels in young men, though only some results were statistically significant.
June 2026 in “The Journal of Sexual Medicine” This study determined that men taking finasteride 1 mg/day exhibited significantly reduced sperm production and morphology compared to controls, although there were no notable changes in hormonal, sexual, or psychological function.