1.ALA-PDT treatment is less invasive, with light inflammatory response and no scarring. 2.The drug is absorbed by the lesion tissue in a targeted manner, and the damage to the normal tissue around the lesion is slight. 3.It can eliminate the hidden lesions, and the recurrence rate is low. 4. Repeatable treatment, lesion cells will not be resistant to photosensitive drugs. Therefore, if patients choose ALA-photodynamic therapy (ALA-PDT) for the treatment of condyloma acuminata, they avoid the adverse consequences of traditional treatments such as freezing and carbon dioxide laser, such as urethral adhesion, scar contracture leading to urethral stenosis and other sequelae, which can relieve patients of the pain caused by the disease to the maximum extent.