Premature ejaculation (medically known as "early ejaculation") is actually very common, affecting 30%-40% of men. Don't panic; it is not a terminal illness, and most cases can be improved through scientific behavioral training. The key is to learn to identify the "ejaculation irreversible point" and actively control during the excitement plateau phase. The classic methods summarized in the following diagram are more professional, easier to understand, and more in-depth (based on international medical guidelines, such as the ISSM-recommended stop-start and squeeze techniques).