Normally the testes do not normally retract upward, but when the skin of the inner thigh is gently scratched with a bamboo skewer, a retraction of the testes occurs, a phenomenon generally known as the testicular reflex. Its presence has clinical significance, for example, when the bilateral retraction disappears can indicate a lesion in the lumbar medulla 1-2, and a weakened side indicates damage to the conus fasciculus. In infants and young children, in cold conditions, the levator muscle can contract violently causing the testes to retract upward and the testes will be temporarily hidden in the upper scrotum. In certain organic diseases, the testes may also contract upward, for example, when the spermatic cord is irritated by inflammation and contracted, which is accompanied by testicular elevation and pain in the spermatic cord. In case of lymphatic tuberculosis of the spermatic cord, nodules of tuberculosis can be formed locally, causing necrosis and fibrosis, which can lead to adhesions between the spermatic cord and the scrotal skin over time, resulting in retraction of the testicle.