Treatment of sclerosing lichenoid degeneration of the penis combined with urethral stricture Sclerosing lichenoid degeneration of the penis (LS) is a chronic, lymphocyte-mediated skin disease, often involving the skin surface, more commonly in male or female perianal and peri-genital tissues, when it involves the urethra, long-term urethral mucosa and urethral corpus cavernosum damage and affects the proximal posterior urethra with difficulty in urination is LS combined with urethral stricture, its treatment The treatment methods are as follows: 1. urethroplasty: urethrotomy or shaping of the external urethra, suitable for LS with external urethral stricture; 2. urethral reconstruction: urethral reconstruction with free grafts is the most effective method for the treatment of LS anterior urethral stricture; 3. flap repair: suitable for patients with short stenosis in the early stage and for the preparation of comprehensive urethral reconstruction in the future; 4. perineal urethrostomy: suitable for advanced cases and patients who are unwilling or unsuitable for urethral reconstruction. cases and patients who are unwilling and unsuitable for urethral reconstruction.