Common causes of glans sensitivity: I. Excessive distribution of glans nerves, in which case there is a tendency to have the problem of premature ejaculation, in which ejaculation occurs just after contact with the vagina after erection, or in less than a minute after entering the vagina. In this case, you can consider improving the symptoms by applying lidocaine plasma to the glans, or by nerve blocking surgery. Second, prepuce, prepuce, etc. This situation is mainly due to the foreskin long-term package rapping the glans tissue, resulting in increased glans sensitivity, resulting in short sex time and other problems. You can consider circumcision, the excessively long foreskin tissue removal, revealing the glans tissue, this situation can slowly improve. In addition, daily attention to fitness, diet appropriate to eat more oysters, mutton, etc., and try to avoid the stimulation of tobacco and alcohol, are helpful.