I often finish quickly, what is the reason?

Patient's question:

Patient gender: Male
Patient age: 35
It's hard to stay hard and I quickly want to ejaculate. I feel like I can't even get a second round.
History and effectiveness of previous treatment: None

Doctor's answer:

It's said that all medicines have side effects. It is recommended to consider medication treatment only after non-medical treatment methods have proven ineffective.
1. Do not be tense or have psychological shadows during sexual activity. You can reduce tension through self-suggestion and by seeking understanding and support from your sexual partner.
2. During sexual activity, avoid secretly diverting your attention or performing intermittent intercourse. Do not focus all your attention solely on sex.
3. When necessary, wear a condom to reduce stimulation to the glans, which can prolong ejaculation time.
4. Masturbation as a supplementary treatment: Do not be tense during masturbation (choose times and places where you will not be disturbed), do not get too excited (avoid reading erotic novels or watching erotic movies), and try to prolong the time of ejaculation as much as possible. However, be mindful not to do it too frequently.