The downward movement of testicular position may be due to varicocele, testicular sheath accumulation, testicular tumor and other factors. 1. Varicocele: patients with varicocele can cause testicular drop and downward movement of testicular position due to localized elevated temperature in the scrotum and scrotal relaxation. 2. Testicular inflammation: In case of testicular epididymal inflammation, the testicle becomes congested and edematous, increasing in size and weight leading to downward movement of the testicle. 3. Testicular syringomyelia: Excessive accumulation of fluid in the testicular syringomyelia will lead to an increase in weight, which will cause the testicle to move downward due to the effect of gravity. 4. Testicular tumors: Patients with testicular tumors can cause a significant increase in the weight of the testicle itself, which can cause the testicle to move downward in position. The downward movement of testicular position may also be caused by other factors. In general, if the testicular position moves downward obviously, you need to pay attention to it and go to regular hospitals for examination in time, so as to clarify the cause of the disease and then carry out targeted treatment.