Testicular tumors are rare, accounting for 1%-1.5% of male tumors. The incidence rate varies significantly in different regions, with the lowest incidence rate in Asia and Africa (1.0%). The etiology of testicular tumor is still unclear. Risk factors include: cryptorchidism, family genetic factors, contralateral testicular tumor, infertility, etc. are all high risk factors. There are many types of testicular tumors, including: germ cell tumors; gonadal/gonadal mesenchymal tumors; and other non-specific mesenchymal tumors. Among them, germ cell tumors are the most common, and germ cell tumors include: seminoma, embryonal carcinoma, teratoma, yolk sac tumor, etc. Non-germ cell tumors include: supportive cell tumors, mesenchymal cell tumors, etc. Testicular tumors have different treatment plans depending on the nature of the pathology, and the same pathological type has different treatment methods depending on the clinical stage of the tumor. For patients with testicular tumors, retroperitoneal lymph node dissection is a minimally invasive laparoscopic procedure mainly combined with the patient’s own condition and supplemented by open surgery.