A glans that is not sensitive but ejaculates quickly may be caused by psychosomatic factors, or infections such as penile glans, prostatitis, and neurological disorders such as brain injury. There are many clinical factors that lead to premature ejaculation, of which excessive glans sensitivity is only one of them. In addition to this, it is common to have excessive mental and psychological stress, excessive masturbation resulting in a decrease in the threshold of excitement, and so on, all of which may have an impact leading to premature ejaculation. If there is a long foreskin and so on leading to foreskin glans, bad habits lead to the emergence of prostatitis and other organic disorders, will also affect the sexual function to a certain extent, may also lead to premature ejaculation. The presence of brain injury, brain tumors, epilepsy, and spinal cord disease may cause premature ejaculation. To summarize, if the glans is not sensitive but ejaculation is fast for many reasons, you should consult a doctor in time.