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In this study of male patients with 46,XY 5α-reductase type 2 deficiency, DHT therapy was effective in achieving penile enlargement during infancy, while testosterone replacement therapy proved more beneficial during puberty, possibly due to increased conversion to DHT.

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 review found an increasing trend in research on sperm DNA fragmentation over the past 20 years, especially focusing on lifestyle factors, asthenozoospermia, and varicocele, with the TUNEL technique as a predominant method.

This study proposes that seasonal alopecia and reproductive changes in six female fossas at the San Diego Zoo may be linked to hormonal changes associated with reproductive activity.

In this case report, treatment with antibiotics, finasteride, and prostate omentalization restored fertility in a 6-year-old German Shepherd with prostatitis and astenoteratozoospermia, avoiding surgical castration.

This review reports an increasing trend in sperm DNA fragmentation research over the past 20 years, with a focus on lifestyle, asthenozoospermia, and varicocele, and highlights the TUNEL technique as widely used.

This document by the AACE and AES provides a 2015 summary of best practices for diagnosing and managing PCOS, emphasizing clinical assessment and treatment options but reports no new clinical results.

This study updates guidelines for evaluating and managing male infertility, including revised testing recommendations for Y-chromosome microdeletions, use of pelvic MRI, and testicular sperm in nonazoospermic males.

This study found that zinc is primarily located in the tails of mature rat sperm, associated with -S-S-bonded structures, and suggests a possible similarity in zinc interactions between sperm keratin and hair proteins.

This review discusses recent research on male infertility causes and treatments, emphasizing the need for further understanding of idiopathic sperm abnormalities and molecular factors to improve patient outcomes; it reports no new clinical results.

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.

This study reported a marginally lower sperm retrieval rate using micro-testicular sperm extraction (m-TESE) among nonmosaic Klinefelter Syndrome patients compared to existing literature, with younger patients benefitting more significantly from the procedure.

In this study, researchers analyzed spermogram data from men with diagnosed infertility in Ukraine, aiming to identify the most common sperm disorders, and they found that the study primarily involved men with primary infertility, compared to a control group of healthy men with confirmed fertility.

Stopping finasteride can improve sperm count in infertile men.

This study found that finasteride treatment in adult hamsters led to significant testicular alterations and reduced spermatogenesis compared to untreated controls.

This study reports that simultaneous cystoscopy, electroejaculation, transurethral resection of ejaculatory ducts, and seminal vesiculography were safe and effective in diagnosing and treating concurrent hematospermia and anorgasmia.

Male infertility and genitourinary birth defects are often linked to genetic issues.

Seminal bacteria can lower sperm quality in subfertile men.

This study found that COVID-19 infection disrupts spermatogenesis, alters testicular cell populations, and may impact male fertility by causing long-term changes in testicular function and reduced sperm quality, as observed even in patients who have recovered from the acute phase of the infection.

This review assesses the current literature on COVID-19's effects on male sexual and reproductive health, highlighting significant research gaps and providing guidance for patient counseling.

Finasteride may improve sperm count in subfertile men with low sperm count.

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

The document concludes that accurate diagnosis of male and female gonadal disorders is crucial for effective treatment and better patient outcomes.

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

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

This study reviews the mechanisms by which SARS-CoV-2 may impact male fertility, noting potential disruptions in spermatogenesis and hormone secretion, and underscores the need for follow-up in recovered men.

This collection of articles explores advancements in reproductive technologies for domestic dogs and cats, highlighting improvements like finasteride treatment for BPH in dogs and a rapid freezing method for cat sperm that enhance fertility preservation and genetic resource banking.

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

This study provides insights into how chronic T. gondii infection might affect testicular tissue and suggests a potential impact on male fertility.