Varicose spermatocele mostly occurs on the left side. Varicocele is one of the common diseases in men and a common cause of secondary infertility. The prevalence in adults is 10%-15%, and the prevalence in adolescence fluctuates from 9%-26% with an average of 15%, similar to adults. Varicocele in adolescence is mostly I0 and II0, and III0 is only 35%. In the past, surgical treatment in adolescence was mostly not advocated clinically, probably because the relationship between the disease and infertility is not yet clear. The degree of varicose veins is closely related to the degree of testicular atrophy, with an incidence of about 7.3%-70%. Early surgical treatment can restore testicular and sperm function by breaking the vicious cycle of local blood stasis, excessive increase in nitric oxide and ultrastructural changes in the testis. The earlier the surgery, the better the results. Further effects of varicose veins on testicular function are reduced. Surgical treatment has been reported to result in improved testicular growth in 89% of adolescent patients. Varicocele surgery does not cause or aggravate infertility, let alone adversely affect sexual function, because most varicocele surgery is now minimally invasive and very precise and minimally invasive. Indications for surgery: (1) varicocele with testicular growth arrest and bilateral testicular volume difference >2ml; (2) severe varicocele with abnormal semen analysis results; (3) varicocele with clinical symptoms such as localized pain, cramping and swelling; (4) bilateral varicocele.