Testicular cancer is one of the common tumors of the urinary system. Clinical symptoms mainly include: in the early stage, testicular enlargement is mostly unintentional, with painless and gradual enlargement of testicles, which may be accompanied by a feeling of swelling of testicles and scrotum, and testicles may be swollen and hardened. With the further development of the disease, metastases are often accompanied by the lymphatic system, with retroperitoneal lymph node metastases being the most common, and patients may experience pain in the lower back after compression of local nerves. If patients develop bone metastases, they will mostly show bony pain. Intra-abdominal organ metastases, such as duodenal metastases, will have digestive system symptoms, such as loss of appetite, nausea and vomiting. In case of metastasis to other systems or organs, such as metastasis to the lungs, there will be manifestations or symptoms such as coughing and difficulty in breathing. In addition, in the case of testicular cancer in children, it may lead to abnormal body hormone levels and manifestations such as premature maturity. It is necessary to seek medical diagnosis in time and make diagnosis according to the clinical symptoms and auxiliary examination of the patient, and do testicular ultrasound and check the body hormone level at the same time. Treatment plan can be divided into surgical treatment and conservative treatment. Clinically, most of the treatments are comprehensive, with surgery as the main treatment and auxiliary radiotherapy treatment.