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This study found that young adult men with moderate to severe AGA have poorer semen quality compared to those with normal to mild AGA.

This article discusses the potential effects of exogenous testosterone, highlighting that its impact on prostate cancer progression, cardiovascular health, and behavior remains uncertain and needs further investigation.

This article reviews the safety of finasteride by examining existing literature and does not report new findings, highlighting the ongoing controversies regarding its adverse effects.

In this study, a very low-calorie ketogenic diet significantly improved metabolic and hormonal profiles in obese men, but did not significantly enhance most semen parameters except for sperm motility.

The April 2014 issue of "Fertility and Sterility" discussed various reproductive health topics, including hormone therapy benefits, sperm and genetic factors in male infertility, and the link between PCOS and diabetes.

This study describes a family with X-linked gynecomastia and undervirilization in men, finding a subtle androgen receptor abnormality that may not always lead to infertility despite androgen resistance.

This paper highlights the need for a comprehensive red ginseng monograph to provide standardized information on its components, certified functionality, efficacy, action mechanisms, and safety, especially given its widespread use as a health functional food in South Korea and interest in its benefits worldwide.

This review discusses the physiological basis, history, and current development of male hormonal contraception, highlighting its potential risks and benefits, but reports no new research findings.

This study concluded that anabolic-androgenic steroids negatively impact male reproductive health, including reduced testosterone production, impaired sperm production, and increased risk of sexual dysfunction and metabolic issues.

This review reports that 5-alpha reductase inhibitors, used to treat androgenic alopecia, may adversely affect sperm count, sexual function, and hormones in a subset of patients.

This study observed that complementary and alternative medicine, often marketed to men as ways to enhance "optimization," "recovery," and "vitality," has become mainstream, with many believing in its benefits for testosterone, erections, libido, hair loss, and sperm quality.

This study explored the effects of MOTILIPERM on infertility in a rat model with varicocele and oxidative stress, reporting its potential therapeutic efficacy.

This analysis of seven studies explored the impact of finasteride (1mg/day for androgenic alopecia) on sperm concentration, finding that in most studies, sperm concentration increased after stopping treatment, but the largest study showed no change during or after treatment.

This review discusses the risk factors and implications of sperm aneuploidy in males, and it reports no new clinical results; the authors highlight the importance of personalized assessment in assisted reproduction.

This study generated FGF5-knockout Dorper sheep using the CRISPR/Cas9 system, resulting in significantly increased fine-wool and active hair-follicle density, and explored downstream signaling pathways for potential applications in androgen alopecia treatment.

This study found that Origanum vulgare extract improved testicular structure and function in mice against finasteride-induced damage by enhancing antioxidant defense and modulating gene expression related to apoptosis.

In this study, male patients treated with 150 mCi of radioactive iodine showed no negative impact on fertility, but long-term studies with larger groups are needed to further assess hormonal effects and sperm health after this treatment.

This case report illustrates how SNP array testing helped identify a DCAF17 mutation linked to Woodhouse-Sakati syndrome in consanguineous Qatari siblings with shared features including alopecia and hypogonadotropic hypogonadism.

A thorough initial check-up is essential before sperm banking to ensure the best chance of preserving good quality sperm.

This review discusses various substances that can impact male fertility and stresses that products should be confirmed 'sperm-safe' through rigorous testing, not assumptions; it reports no new study results.

This study found that stem cell transplantation effectively reduced acute inflammation-induced testicular damage, suggesting potential for cell-based therapies in addressing male infertility.

This study reported that semen quality improved in three young men after discontinuing long-term finasteride use, although meiotic abnormalities persisted.

This article reviews the effects of various medications on male fertility, noting that while commonly used drugs can mostly have reversible impacts, conclusive human evidence remains limited.

This review indicates that many former FDA category D and X systemic dermatologic medications may negatively impact male fertility, with further research needed to assess potential teratogenic effects.

Environmental factors and exposure to toxins may contribute to male infertility by affecting sperm and hormone function.

This special issue contains abstracts from the ASA 40th Annual Meeting, providing an overview of various studies without reporting new primary results.

The guideline recommends mental health involvement in diagnosing gender identity disorder and outlines hormone and surgical treatment protocols, emphasizing safety, informed consent, and long-term monitoring.

This study found that discontinuing finasteride led to a significant increase in sperm counts for most men with reduced fertility, though hormone levels and other semen parameters remained unchanged.

This study found that a single injection of platelet-rich stroma significantly increased hair density in men with androgenetic alopecia within 6 to 12 weeks, with no reported side effects.