Torsion Torsion. The testicle is attached to the scrotum at the bare area. If the bare area is small, a tiny remnant stalk of tunica vaginalis allows the testicle to be mobile. Torsion occurs when the testicle revolves one or more times on this short stalk, which obstructs blood flow to the testicle, resulting in severe pain. Torsion is more common in males under 25 years of age with a peak incidence at.. 2009. 9. 21. 이전 1 다음