Ulcers on the coronal sulcus of the glans can be caused by syphilis, genital herpes, or glansitis, so it is necessary to go to the hospital for differential diagnosis in a timely manner. Syphilis and genital herpes are sexually transmitted diseases, mainly through impure sexual intercourse, so first you need to ask the patient’s medical history, whether impure sexual intercourse has occurred. It is recommended to go to the hospital to do syphilis antibody monitoring as well as syphilis serum rapid response test, herpes simplex virus monitoring and other tests, if the above test results are negative, you can exclude the possibility of genital herpes or syphilis, then you need to consider glansitis.