Testicular pain is more common in clinical urology and is one of the common symptoms. There are various causes of testicular pain, generally can be divided into the following two kinds: 1, acute pain: pain suddenly attacked, commonly in acute inflammation, such as common acute orchitis, epididymitis, can be manifested as the scrotum, testicular redness and swelling significantly increased, tenderness and pain, may also be testicular torsion, common in adolescents, sudden change of position during strenuous exercise, or even sleep a turn over, can appear testicular torsion. We must pay great attention to testicular torsion, testicular torsion should be found and dealt with in time; 2, chronic pain: often manifested as dull pain, hidden pain in the testicles, such as common chronic epididymitis, some may be caused by chronic prostatitis, and lower ureteral stones, sometimes can also appear testicular swelling, pain, falling, etc. Testicular trauma is also one of the causes of testicular pain.