68 citations
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February 2019 in “Urology” Hormonal treatment in transgender women reduces semen quality, but stopping treatment may improve it.
January 2018 in “日本薬理学会年会要旨集 =” Stopping finasteride improves sperm quality but not semen volume in young men.
October 2010 in “Journal of Men's Health” Larger prostate size in older men may be linked to poorer semen quality and fertility issues.
2 citations
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March 2022 in “Laboratory Animal Research” A mild botulinum toxin injection improved sperm production and movement in aging mice.
23 citations
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January 2007 in “Archives of Andrology” Finasteride may negatively affect male fertility.
15 citations
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January 2017 in “Advances in Experimental Medicine and Biology” 5α-Reductase inhibitors can negatively affect male sexual function and, in some cases, significantly reduce sperm count, but these effects may be reversible.
A very low-calorie ketogenic diet led to weight loss and improved metabolic and hormonal health in obese men, with better sperm motility.
April 2026 in “The Journal of Urology” Finasteride and dutasteride reduce semen quality, with dutasteride having a stronger negative effect.
February 2026 in “Andrology” Post-orchidectomy semen has better DNA integrity for fertility treatments.
195 citations
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February 2007 in “The Journal of Clinical Endocrinology and Metabolism” Dutasteride and finasteride may reduce sperm count and volume but don't affect movement or shape; effects are reversible after stopping.
May 2025 in “Veterinary Medicine and Science” Melatonin improved reproductive function in male Pomeranian dogs with Alopecia X, but more research is needed.
3 citations
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January 1993 in “Toxicological Sciences” 2-Ethylhexanoic acid harms fertility and delays development in rats.
March 2026 in “Clinical Cosmetic and Investigational Dermatology” Upadacitinib improved multiple immune-related conditions in one patient.
9 citations
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February 2020 in “International Journal of Endocrinology” Some men with early hair loss may have a male version of PCOS, affecting hormones and increasing health risks.
44 citations
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June 2009 in “Biomaterials” Skin cell clumping for hair growth is improved by a protein called fibronectin, which helps cells stick and move better.
January 2024 in “Wiadomości Lekarskie” Kinematic alignment in knee surgery often requires smaller femoral components than mechanical alignment.
November 2025 in “International Journal of Research in Medical Sciences” Titagen® improves skin, hair, nail health, and reduces osteoarthritis symptoms safely.
18 citations
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October 2018 in “Journal of The American Academy of Dermatology” Some skin medications can harm male fertility, but they don't seem to cause birth defects from father's exposure.
Fgf20 helps form hair follicle structures by stopping cell division and increasing cell movement.
January 2024 in “Journal of neurogastroenterology and motility” Quadruple-coated probiotics significantly improve IBS symptoms.
October 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” A small BOTOX dose improved sperm production and movement in older mice.
Fgf20 is crucial for hair follicle formation by influencing cell movement and growth.
33 citations
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April 2015 in “Current Opinion in Endocrinology, Diabetes and Obesity” 5α reductase inhibitors treat hair loss but may cause sexual side effects and risks.
August 2015 in “Dermatologica Sinica” Men with severe hair loss may have poorer sperm quality.
87 citations
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September 2019 in “Nature Communications” SOX11 and SOX4 help skin cells act like embryonic cells to heal wounds in mice.
35 citations
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October 2004 in “Biology of Reproduction” PNU157706 reduced rat sperm movement and fertility without affecting offspring health.
34 citations
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January 2004 in “Revista do Hospital das Clínicas” Finasteride may worsen infertility in men with existing issues, but stopping it can improve sperm health.
8 citations
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December 2016 in “Revista Medica De Chile” Finasteride can cause sexual dysfunction, sperm changes, and affect bone density and metabolism.
January 2023 in “European journal of gynaecological oncology” KRT17 may be a new target for endometrial cancer treatment because it helps cancer cells move and form new blood vessels.
April 2021 in “Animal Bioscience” 5-Aminolevulinic acid can help chicken sperm move better at the right amount.