The medical hazard, for him, of being beneath her

“Safe sex” — in its most mechanical aspects — is the focus of this new study:

reisMechanisms Predisposing Penile Fracture and Long-Term Outcomes on Erectile and Voiding Functions,” Leonardo O. Reis [pictured here], Marcelo Cartapatti, Rafael Marmiroli, Eduardo Jeronimo de Oliveira Júnior, Ricardo Destro Saade, and Adriano Fregonesi, Advances in Urology, volume 2014, article ID 768158. The authors, at University of Campinas (UNICAMP) and Pontifical Catholic University of Campinas (PUC), Brazil, report:

PURPOSE. To determine the mechanisms predisposing penile fracture as well as the rate of long-term penile deformity and erectile and voiding functions….

Results. Among the 44 suspicious cases, 42 (95.4%) were confirmed, mean age was 34.5 years (range: 18–60), mean follow-up 59.3 months (range 9–155). Half presented the classical triad of audible crack, detumescence, and pain. Heterosexual intercourse was themost common cause (28 patients, 66.7%), followed by penile manipulation (6 patients, 14.3%), and homosexual intercourse (4 patients, 9.5%). “Woman on top” was the most common heterosexual position (𝑛 = 14, 50%), followed by “doggy style” (𝑛 = 8, 28.6%). Four patients (9.5%)maintained the cause unclear. Six (14.3%) patients had urethral injury and two (4.8%) had erectile dysfunction, treated by penile prosthesis and PDE-5i. No patient showed urethral fistula, voiding deterioration, penile nodule/curve or pain.

CONCLUSIONS. ‘Woman on top’ was the potentially riskiest sexual position (50%).

(Thank you to Dr. Reis for bringing this to our attention.)