The clinical features of this disease are: 1. It is mostly seen in young and middle-aged married women, with rapid onset, long duration and short interval, with frequency, urgency and painful urination as the main symptoms; 2. The disease is easily mistaken for atopic or non-atopic urethritis or cystitis, and is easily relieved by medication, but repeatedly and persistently treated; 3. It can be seen that the urethral opening is covered by a hymen of different shapes, or the distance between the urethral opening and the vaginal opening is too short. In view of the above features, it is recommended that young female patients with recurrent lower urinary tract infections should visit a gynecologist for routine examination of the urethral orifice and hymen, which usually reveals the above anatomical abnormalities. Diagnosis of this disease is not difficult with careful specialist examination, but IVU, cystoscopy, and urinary tract bacterial culture should be performed simultaneously to exclude other organic diseases.