What causes pain and swelling in the left testicle?

Left testicular pain and swelling may be caused by trauma, orchitis, testicular torsion and other factors, specific analysis is as follows:

1. Trauma

left testicular trauma, local cell damage, will appear congestion, edema, exudation, exudate accumulation in the testis, stimulate peripheral pain nerve, will appear pain.

2. Orchitis

orchitis occurs, testicular barrier damage, local breeding more bacteria, stimulate testicular tissue, lead to testicular edema, at the same time will make local nerve sensitive, cause pain.

3. Testicular torsion

testicular torsion will make spermatic vein blood supply blocked, leading to testicular ischemia, hypoxia, causing testicular necrosis, local necrosis metabolites accumulation in the testis, will cause left testicular pain and swelling.