What is the reason for increased penile sensitivity in premature ejaculation?

Patient's question:

Premature ejaculation, penis sensitivity is high, no normal sexual life, but ejaculation is also very fast when using a simulation masturbation device, has sexual history

Doctor's answer:

The situation you mentioned may be due to frequent sexual activity affecting your sexual function, but it cannot be confirmed at this time. It is recommended that you abstain from sexual activity, engage in more physical activity, and if you have excessive foreskin, consider surgical treatment. In addition to treating premature ejaculation, it is advised that patients pay attention to their diet in daily life and maintain a pleasant mood to enhance their physical condition and slow down the recovery process.