Testicular torsion is found to start suddenly after a year and may be associated with congenital factors such as anatomical malformations or acquired factors such as overactivity that require immediate medical attention.
Testicular torsion, also known as spermatic cord torsion, usually has an acute onset and is caused by an increase in anatomical activity of the spermatic cord or testis leading to rotation of the testis along the longitudinal axis of the spermatic cord, which leads to compression and obstruction of the testicular vasculature, causing acute ischemic necrosis of the testis.
Anatomical malformations such as excessive length of the tethered membrane between the testis and epididymis, increased sheath malformation capacity due to high sheath attachment position, and increased testicular mobility can cause testicular torsion.
Acquired factors such as contraction of the levator muscle during sleep, or excessive activity can also cause testicular torsion. Testicular torsion will cause severe pain in the scrotum, which may radiate to the lower abdomen and cause redness and swelling of the scrotum, as well as nausea, vomiting and other clinical manifestations.
Patients with severe pain in the testicles are advised to seek immediate medical treatment and complete scrotal ultrasound and other related examinations as soon as possible, so as to avoid causing testicular necrosis and other serious consequences.