Suddenly no feeling in the glans may be due to frequent sex, long-term masturbation and other physiological factors, may also be erectile dysfunction, ejaculation disorders and other diseases. 1. Physiological factors: usually for men who have excessive sex life or long-term masturbation and other bad habits, may appear glans suddenly no feeling phenomenon, is a normal physiological phenomenon. 2. Erectile dysfunction: usually due to psychological stress, blood flow abnormalities, central and peripheral nerve damage or disease, surgery and other conditions, and also related to poor lifestyle, prostate hyperplasia, education level, sexual function status and other factors. Patients often appear erectile slow or difficult to erect, some patients also due to the erection hardness is not enough, the phenomenon of insertion weakness, which can also be manifested as the glans suddenly no feeling. 3. Ejaculation disorder: usually caused by mental psychology, hormones, prostatitis, genetics and other conditions. Patients with normal erectile function, but the penis may have low sensitivity, and patients can not control the ejaculation time, so some patients can also appear glans suddenly no feeling. It is recommended that when the phenomenon of the glans suddenly no feeling, timely medical treatment, if it is caused by disease, but also need to actively cooperate with the doctor’s treatment.