The local blood spots on the glans are considered to be caused by excessive violence and repeated friction during sexual intercourse, which can slowly recover automatically. It is also considered to be caused by glansitis, because the glans local inflammatory infection will appear congestion, edema, pain, itching and other symptoms, the glans local will have scattered blood distribution, then to use 1:5000 potassium permanganate solution for cleaning, and then apply erythromycin ointment, 3-5 days after the blood spots can slowly disappear, the symptoms can also gradually improve. If you have a history of unclean sex, the blood spots on the glans should also be considered venereal diseases, such as syphilis, genital herpes, patients with prepuce if the foreskin appears embedded phenomenon, the local tension blisters will appear, due to the blisters inside the bruises will be obvious blood spots exist.