Cross-section of the human penis<unk>  is a relatively uncommon clinical condition. Vaginal intercourse and aggressive masturbation are the most common causes. A 2014 study of accident and emergency records at three hospitals in Campinas, Brazil, showed that woman on top positions caused the greatest risk with the missionary position being the safest. The research conjectured that when the receptive partner is on top, they usually control the movement and are not able to interrupt movement when the penis suffers a misaligned penetration. Conversely, when the penetrative partner is controlling the movement, they have better chances of stopping in response to pain from misalignment, minimizing harm. The practice of taqaandan (also taghaandan) also puts men at risk of<unk> . Taqaandan, which comes from a Kurdish word meaning "to click", involves bending the top part of the erect penis while holding the lower part of the shaft in place, until a click is heard and felt. Taqaandan is said to be painless and has been compared to cracking one's knuckles, but the practice of taqaandan has led to an increase in the prevalence of<unk> s in western Iran. Taqaandan may be performed to achieve detumescence.
Penile fracture
Testicular torsion
Urethrocele
Varicocele
Hematocele
Buried penis
Cervical ectropion
Penile torsion