The basic steps of posterior urethral anastomosis are: 1) distal urethral dissection (step 1), 2) penile cavernous septotomy (step 2), 3) subpubic rim resection (step 3), and 4) urethral bypass from one side of the corpus cavernosum (step 4). The age of the patient, the length of the stenosis, and prior treatment may have an impact on the success rate of the procedure, with studies showing a lower success rate in children and adolescents. The reason for this consideration may be that prepubertal patients may have a smaller blood vessel communicating between the penis and glans, resulting in an inadequate blood supply to the distal end of the urethra. This theory of inadequate retrograde blood supply may explain the lower success rate of urethral repair in adolescents compared to adults, and given these reasons, posterior urethroplasty continues to be a difficult problem in children. There is still no uniform treatment protocol. The results of the study showed a higher success rate in patients without a history of surgery than in those with a history of surgical repair. The operation of bypassing the urethra from one side of the penile corpus cavernosum is more complicated, and the distal urethra bypassing the penile corpus cavernosum did not gain a direct pathway due to a lack of skill in early surgical techniques, which was used in only 2 cases in our group and with unsatisfactory results. However, with the continuous improvement of the surgical technique, the success rate of the operation was greatly improved in later operations, confirming that it is a feasible method.