Disorders of penis development are on the rise and we’re not sure why

By Mark Green and Andrew Pask

In prenatal ultrasounds or at delivery, many new parents look between their baby’s legs: the presence of a penis is taken as a strong sign that it’s a boy.

For humans and other animals, development of a penis was thought to be driven by “male hormones” (androgens) produced entirely by the testes of the male fetus as it grows in the uterus.

However, a new paper released today indicates this might not be the case.

General Practice Sexual Health Update Day

Australasian Society for HIV, Viral Hepatitis and Sexual Health Medicine (ASHM), March 2018

 

*Please note this training is for GPs and practice nurses. 

Cycling does not damage men’s sexual or urinary functions

Science Daily, January 11

Cycling is increasingly popular for transportation, exercise, and leisure, and its impact on sexual health has received a great deal of media attention, especially regarding erectile function. In a new report in The Journal of Urology®, researchers found that contrary to some previous studies, neither recreational nor intense cycling appear to have a negative impact on men’s sexual and urinary function.

This is the largest comparative study to date, exploring the associations of cycling, bike and road characteristics with sexual and urinary function using validated questionnaires

New class of antibiotic raises hopes for urgently-needed gonorrhoea drug

The Guardian, Tuesday 8 August 2017 

A new class of antibiotic has been found to work in the lab against the sexually transmitted infection gonorrhoea, which can cause infertility and damage to babies and is fast becoming resistant to all existing drugs.

Although it is early days, because the antibiotic has yet to be tried in animals or humans, researchers say they are excited by its potential.

STI rates in PrEP users very high, but evidence that PrEP increases them is inconclusive

nam/aidsmap, Published: 22 February 2017
A study of PrEP users presented last week showed that PrEP users had very high rates of STI diagnosis – in the order of 20 times higher than among HIV-negative gay men in the general population. The evidence that STIs increased further while people were on PrEP was, however, a lot more ambiguous.
The problem in proving that PrEP has any causal relationship to STIs is that STIs among gay men were, in general, rising before well before PrEP, and also that PrEP usually involves regular testing for HIV and STIs. Since many STIs are asymptomatic and self-limiting, more tests will result in more diagnoses.
Read more here