There are usually two reasons for male penis cracks: first, if the penis crack in the foreskin area, mostly due to the foreskin is infected with infection, common infection fungi, bacteria, etc., in the stimulation of inflammation will lead to changes in the state of the local skin, the texture of the hardness of the local cracks, accompanied by pain and purulent exudate in severe cases, may be accompanied by diabetes mellitus, need to carry out aetiological testing, according to the type of inflammation for Secondly, if the male penis glans cracks may be infected with some kind of sex disease, such as men infected with gonococcus or syphilis caused by localized acute erosion of the glans, when the condition is serious, accompanied by pain, increased secretion, urinary frequency, urgency, painful urination and cracking, etc., you need to carry out the corresponding syphilis, gonococcus, chlamydia, mycoplasma, etc. relevant examination, clear diagnosis, symptomatic treatment, and then the patient will be treated with the appropriate treatment. Symptomatic treatment.