The exposed glans is usually of no consequence. However, if the foreskin is too long or circumcised, there exists some harm. In normal people, the glans is exposed. And the glans is exposed to the outside is a certain benefit, the glans skin wrinkles under the glans will not have more dirt appear, can reduce the possibility of inflammation-related diseases. If the glans is wrapped in the foreskin for a long time and not exposed, this situation belongs to the circumcision or phimosis, and there are certain hazards, such as may cause circumcision and glansitis, and may also increase the probability of penile cancer. It is recommended to go to the regular hospital for a detailed examination to make a clear diagnosis, and make a reasonable treatment plan under the diagnosis and treatment of professional physicians.