July 2023 in “The journal of sexual medicine” Anabolic-androgenic steroids harm male hormone levels, sperm, metabolism, and can cause acne, hair loss, and breast growth.
June 1998 in “Biomedicine & Pharmacotherapy” Medical treatments like chemotherapy and radiotherapy can harm sperm production, so freezing sperm before treatment is important for men who want children later.
September 2017 in “Journal of Investigative Dermatology” Aging causes sweat glands to shrink and move upward, leading to less elastic skin and more wrinkles.
71 citations
,
August 2019 in “The journal of sexual medicine” Testosterone treatment effectively causes male physical development in transgender male adolescents but may lead to side effects like acne, higher BMI and blood pressure, lower good cholesterol, and decreased bone density.
1 citations
,
December 2018 in “Journal of Cosmetic Dermatology” Men with thinner hair from genetic hair loss may be more likely to have an enlarged prostate.
7 citations
,
May 2012 in “International Journal of Andrology” The new oral testosterone pill normalized testosterone levels and lowered SHBG in men with low testosterone.
November 2022 in “Journal of the Endocrine Society” A transman experienced lasting virilization symptoms after stopping testosterone, which were resolved with estradiol treatment.
1 citations
,
December 2019 in “Frontiers in endocrinology” Higher androgen levels during puberty are linked to shorter adult height in boys with Silver-Russell syndrome.
5 citations
,
December 2021 in “Pediatric investigation” Testosterone undecanoate safely and effectively increased penis size in male children with 5-alpha-reductase deficiency.
August 2003 in “Oncology Times” The trial on testosterone replacement therapy in older men faced concerns due to prostate cancer risk.
280 citations
,
May 2005 in “Andrology” Testosterone treatment for older men can have short-term benefits, but long-term risks are unclear, requiring careful evaluation and monitoring.
September 2012 in “African Journal of Urology” Testosterone replacement therapy improves libido, mood, muscle strength, and bone density in men with Testosterone Deficiency Syndrome.
January 2005 in “Journal of Investigative Medicine” Testosterone therapy improves strength and body composition in older men with low testosterone.
Finasteride impairs sperm quality and fertility in rats, even after stopping treatment.
January 2013 in “Journal of Endocrinology and Diabetes Mellitus” Cushing syndrome often causes low testosterone and sexual issues in men.
9 citations
,
August 1992 in “The Journal of Clinical Endocrinology and Metabolism” Check hormone levels and blood counts before surgery in dogs with abnormal blood cell counts.
2 citations
,
December 2017 in “Theriogenology” Testosterone increases acidification in the vas deferens by up-regulating V-ATPase.
1 citations
,
April 1999 in “The Journal of Urology” Finasteride reduces prostate size and DHT in male mastomys but not in females.
19 citations
,
March 2004 in “The Journal of Clinical Endocrinology & Metabolism” Testosterone and letrozole treatment speeds up puberty in boys with delayed development.
3 citations
,
February 2017 in “Archives of Medical Science” Finasteride treatment changes Cx43 in rat testes, possibly causing fertility issues.
12 citations
,
October 2018 in “Aging male/The aging male” Higher BMI and lower testosterone are linked to more aggressive prostate cancer.
Finasteride reduces prostate size and PSA levels in young patients.
April 2017 in “The journal of sexual medicine” 5-alpha-reductase inhibitors significantly affect the penile tissue of hypertensive rats.
15 citations
,
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.
October 2015 in “Digital Library of Theses and Dissertations (Universidade de São Paulo)” Finasteride reduces prostate size and PSA levels in young men with hair loss.
1 citations
,
February 2018 in “The Journal of Sexual Medicine” Ultrasound shows 96% of young men with erectile dysfunction after using finasteride have abnormal penile tissue.
16 citations
,
January 2017 in “Asian journal of andrology/Asian Journal of Andrology” Men who start puberty later may have lower sperm quality and different hormone levels in adulthood.
10 citations
,
October 2012 in “Andrology” Prostate cancer can progress even with low testosterone due to internal hormone production in the tumor.