The glans refers to the coronal sulcus, which is more sensitive and is mainly considered to be related to age factors, bad habits and organic lesions. 1. Age factor: according to research, with age, the coronal sulcus and glans sensitivity will continue to decrease. Some men in puberty, who have not had sexual experience, may have a more sensitive coronal sulcus. 2. bad habits: such as too frequent masturbation, or too frequent sex, can also lead to a more sensitive coronal sulcus. 3. Organic lesions: circumcision, phimosis, etc., will lead to the glans and the coronal groove is wrapped in the foreskin, seldom contact with the outside world, and then cause the coronal groove sensitivity; prostatitis, glans, and other diseases, will also stimulate the glans and the coronal groove, will also lead to the coronal groove sensitivity. The appearance of coronal sensitivity, should consult a doctor in time to confirm the diagnosis, to be targeted treatment.