Andrology
Medical specialty
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We include updates on Human penis size, Ejaculation, Erection, Castration, Pearly penile papules, Gynecomastia, Premature ejaculation, Brian Piccolo, Benign prostatic hyperplasia, Late-onset hypogonadism, Baculum, Anthony Radziwiłł, Nocturnal penile tumescence, Varicocele, Y chromosome, Death erection ... and more.
| 2024 |
Male contraceptive
The patent for using α1-adrenoceptor antagonists as male contraceptives was approved, marking a significant milestone in non-hormonal male contraceptive research.
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| 2023 |
Male contraceptive
A new lonidamide derivative called BHD was developed, showing contraceptive effects in rodents, though further characterization is needed.
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| 2023 |
Male contraceptive
YCT529, a retinoic acid receptor antagonist, began its Phase 1 clinical trial organized by YourChoice Pharmaceuticals, with testing conducted by Quotient Sciences, UK.
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| 2023 |
Male contraceptive
A patent was filed for using α1-adrenoceptor antagonists (Silodosin and Tamsulosin) as male contraceptives, exploring their ability to block ejaculation while maintaining orgasm sensation.
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| 2022 |
Human penis size
On Pornhub, search terms related to race and genitalia become prominent: 'Black' ranks 13th, 'BBC' ranks 9th, and 'Ebony' becomes the most searched category of the year.
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| 2022 |
Male contraceptive
YCT529, a non-hormonal male contraceptive, was originally planned to begin clinical trials.
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| 2022 |
Male infertility crisis
Follow-up meta-analysis by Hagai Levine revealed accelerating decline in sperm concentration and count, with steeper declines in studies post-2000.
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| 2022 |
Male infertility crisis
A second meta-analysis expanded the findings, demonstrating that the sperm count decline is not limited to Western countries but also affects regions in Asia, Africa, Central America, and South America, suggesting an accelerating trend of male fertility decline.
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| 2021 |
Human penis size
A study of 14,597 Vietnamese men investigated flaccid penis length, stretched penis length, and non-aroused circumference.
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| 2021 |
Male infertility crisis
Shanna Swan published 'Count Down' book, projecting potential sperm count decline to zero by 2045 if current trends continue.
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| 2020 |
Human penis size
A review in the Journal of Sex & Marital Therapy analyzed ten prior studies with researcher-measured penis sizes, finding an erect penis length between 12.95 and 13.92 cm, challenging self-reported size estimates.
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| 2020 |
Male contraceptive
Dr. Polina Lishko was awarded the MacArthur 'Genius' Fellowship for her contributions to understanding sperm physiology and potential contraceptive development.
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| 2019 |
Penile implant
Rigicon Innovative Urological Solutions introduced the 'Infla10' series (including Infla10 AX, Infla10 X, and Infla10 models) and the 'Rigi10 Hydrophilic' inflatable and hydrophilic-coated malleable models.
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| 2018 |
Male contraceptive
A modelling study was conducted suggesting that partial adoption of new male contraceptives could significantly reduce global unintended pregnancy rates, which remain near 50% even in developed countries.
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| 2017 |
Penile implant
Rigicon Innovative Urological Solutions released the 'Rigi10', a malleable implant expanding market options. By this time, more than ten manufacturers of penile implants existed worldwide.
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| 2017 |
Male infertility crisis
Meta-analysis published revealing a dramatic 52.4 percent decline in sperm counts in Western countries between 1973 and 2011, bringing significant media attention to the male infertility crisis.
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| 2017 |
Male infertility crisis
Meta-analysis by Hagai Levine reported dramatic declines in sperm concentration (52.4%) and sperm count (59.3%) in Western countries from 1973 to 2011.
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| 2016 |
Human penis size
A study of 248 Korean men identified the average erect penis length in that population.
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| 2015 |
Human penis size
A study by BJU International concluded the average erect penis length to be 13.12 cm.
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| 2015 |
Human penis size
A systematic review of 15,521 men from 20 studies found no indications of differences in racial variability of penis size.
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| 2015 |
Human penis size
A study by King's College London reviewed data from 20 studies with 692 participants to analyze penis length.
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| 2014 |
Human penis size
A study on 5,196 Chinese males reported measurements of flaccid and stretched penis length using a 'gentle painless extension' method.
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| 2014 |
Human penis size
An American study by Herbenick et al. of 1,661 sexually active men from various racial backgrounds investigated the relationship between race and penis size.
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| 2013 |
Human penis size
A study from Tanzania measuring stretched flaccid penis length in 93 Tanzanian men was conducted.
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| 2013 |
Male contraceptive
The Male Contraceptive Initiative was founded to fund and support the development of new male contraceptives.
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| 2011 |
Male contraceptive
The injectable male contraceptive clinical trial was halted early by a World Health Organization Research Project Review Panel due to adverse events including mood changes, depression, and other side effects.
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| 2011 |
Male infertility crisis
End of the initial study period showing a 52.4 percent decline in sperm counts in Western countries.
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