There are several reasons why the testicles sometimes have vague pain: 1. It may be due to prostate inflammation, the symptoms of prostate inflammation can lead to pain in the abdomen, or urinary urgency and frequency, and sometimes there may be symptoms of impotence and premature ejaculation; 2. It may be due to symptoms of varicocele, most of the causes of varicocele may be caused by genetic factors, and a small part may be As a result of masturbation, varicose veins not only cause testicular pain, but also sometimes testicular atrophy and even affect the quality of semen, leading to male infertility. In addition, it is also necessary to consider whether there is testicular inflammation or testicular cysts, so it is best to have an ultrasound examination to confirm the condition, or to see a doctor for treatment in time.