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Research
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research Effect of Testosterone, Dihydrotestosterone, Estradiol and Cortisol on the Quality of Fresh and Cryopreserved Stallion Sperm
Higher testosterone harms sperm motility, while higher estradiol improves sperm survival.
research Is age at puberty associated with semen quality and reproductive hormones in young adult life?
Men who start puberty later may have lower sperm quality and different hormone levels in adulthood.
research Semen Parameters Among Transgender Women With a History of Hormonal Treatment
Hormonal treatment in transgender women reduces semen quality, but stopping treatment may improve it.
research 5α-Reductase Inhibitors (5ARIs) and Male Reproduction
5α-Reductase inhibitors can negatively affect male sexual function and, in some cases, significantly reduce sperm count, but these effects may be reversible.
research Single injection of very mild dose botulinum toxin in the vastus lateralis improves testicular spermatogenesis and sperm motility in ageing experimental mice
A mild botulinum toxin injection improved sperm production and movement in aging mice.
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5 / 1000+ resultscommunity H as anyone done sperm/fertility test before and after staring finasteride?
The conversation discusses the impact of finasteride on sperm, including potential side effects like decreased ejaculate volume and total sperm count. Users share experiences and concerns about fertility tests before and after starting finasteride.
community RU58841 and impact onmale fertility?
The conversation is about the potential impact of RU58841 on male fertility, specifically regarding sperm concentration, total count, and motility. The user is curious about the likelihood of RU58841 reducing fertility based on its mechanism of action and comparisons to similar substances.
community Andrew Schulz stated he had been using a ‘’hair pill’’ for 15 years and it may have caused him infertility
The conversation discusses the potential link between hair loss treatment pills, specifically finasteride, and infertility. Users share their experiences and opinions, with some suggesting that finasteride can temporarily lower sperm count, while others argue that other factors like age and lifestyle could also contribute to infertility.
community Semen Analysis results: Before and after Finasteride
A man stopped taking finasteride, a hair loss treatment, to improve his fertility. His sperm count and motility increased after stopping the medication, but sperm shape did not change.
community Male (24) Using Dutasteride Since 2020 – Concerns About Having Kids
A 24-year-old male using dutasteride for hair loss is worried about its effects on fertility and future children's health. Users advise consulting a doctor, possibly switching to finasteride, or stopping dutasteride before conception due to its impact on sperm count.