Primary urethral tumors are rare clinically. Female urethra is shorter, but the incidence of cancer is higher than that of male urethral cancer. It is common in 40 to 60 years old. Malignant tumors include carcinoma, sarcoma, melanoma, etc. Squamous cell carcinoma is the most common in pathological classification, accounting for about 40%. The second is transitional cell carcinoma, accounting for 30%; adenocarcinoma accounts for 23%; undifferentiated carcinoma accounts for 1%. Its incidence rate is 4 to 5 times higher than that of men, accounting for 0.017% of gynecological malignant tumors. Symptoms such as urethral bleeding, frequent urination, urgency, and pain when urinating may occur in the early stage. As the tumor grows, it can also cause difficulty in urination. It is difficult to treat and the prognosis is poor.