LONDON — A group of Canadian researchers has found that the “woman on top’ sex position is most perilous for men, as this position is responsible for half of all penile fractures in the bedroom.
Penile fracture is a relatively uncommon clinical condition that causes fear and shame to the patient and can hamper sexual functions.
For the study, the group took a look at three hospitals in Campinas, a city of three million people in Brazil, used hospital’s records and in some cases talked with the patients directly, Telegraph reported.
“Our study upholds the way that sex with ‘woman on top’ is the possibly least secure sexual position identified with penile fracture,” the authors noted.
They took a looked at patients with suspected “penile fractures” over a 13-year period.
50% of them, with average age 34, reported hearing a crack before experiencing pain, with some also suffering swelling. Some of them waited up to six hours before seeking for medical help.
“Our hypothesis is that when woman is on top, she generally controls the movement with her whole body weight landing on the erect penis, not being able to interrupt it when the penis suffers a wrong way penetration,” the creators noted.
The research was published in the Advances in Urology journal.
New vaginal ring to prevent HIV, pregnancy is safe: Study
An experimental vaginal ring designed to prevent pregnancy and HIV looks safe, according to an early stage study.
The ring is designed to provide 90 days’ protection at a time. The dual-purpose ring releases the antiretroviral drug dapivirine and the contraceptive hormone levonorgestrel, said researchers led by Dr Sharon Achilles, of the University of Pittsburgh School of Medicine.
This small, 14-day trial involving 24 women who were not pregnant and not infected with HIV was the first clinical study of the ring.
“We are very encouraged by our findings in this first-in-human study of the dapivirine-levonorgestrel ring,” said Achilles, an assistant professor of obstetrics, gynecology and reproductive sciences.
Its use resulted in sufficient levels of levonorgestrel to prevent pregnancy and adequate levels of dapivirine to reduce risk of HIV infection, the researchers noted.
There were no safety concerns, and the ring was well-tolerated, according to the Microbicide Trials Network study.
The researchers have started a second Phase 1 trial in which women will use the ring for 90 days.
“With a second study underway, we are another step closer to potentially having an easy-to-use product that can provide safe and effective, long-acting protection against both HIV and unintended pregnancy,” Achilles said in a network news release.
The research was funded by the US National Institutes of Health and presented Wednesday (Oct 24) at an HIV prevention conference, in Madrid, Spain.
Research presented at meetings is usually considered preliminary until published in a peer-reviewed medical journal.