Adhesions at the vaginal opening in babies are in most cases related to the following factors. First, abnormal congenital development, which is the most common condition. Parents can try to pick open the child’s labia majora with their hands and apply erythromycin ointment locally. If the effect is not satisfactory, it is necessary to go to the hospital for surgical incision. Second, the child’s vulvodynia or urinary tract infection leads to this situation, which is also relatively common. The child is relatively young and often uses diapers. If there is vulvovaginitis, the stimulation of inflammation will lead to local skin redness and increased secretion, causing adhesions of the labia, which will obstruct the urethra, or obstruct the vaginal opening, which is also relatively common. The main thing is to keep the perineum hygienic, keep the local skin dry and fresh, stop using diapers, and avoid excessive ambient temperature and humidity. Topical erythromycin ointment can also be applied locally for treatment.