Although men can achieve erection and orgasm, there are some reasons why they cannot ejaculate.
1. Surgical procedures that affect the reproductive system (such as prostatectomy for prostate cancer patients)
2. An obsessive-compulsive disorder that cannot be overcome (such as excessive emphasis on hygiene and the belief that semen is extremely dirty)
3. Psychological/sexual psychological issues (such as fear of partner pregnancy, fear of losing control, or cultural taboos)
4. Adverse reactions of some drugs (such as antidepressants: serotonin selective inhibitors, SSRIs).
Although SSRIs and other medications may interfere with sexual desire and function, patients with depression should not stop taking medication without consulting a doctor, as serious complications may occur. Some progressive neurological disorders such as multiple sclerosis, stroke, or nerve damage caused by spinal cord injury, or hormone deficiency can also lead to the occurrence of ejaculatory reflex.
On the contrary, sometimes men can ejaculate without an erection or orgasm
1. Severe premature ejaculation (ejaculation occurs without an erection or stimulation of the penis)
2. Due to psychological issues such as excessive excitement, nervousness, fear of intimacy, and sexual relationships.
3. Mental disorders such as severe schizophrenia
4. Surgical complications involving the genital system
5. Other conditions include hormonal imbalance, progressive neurological disorders, diabetes, drug or alcohol dependence, and brain or spinal cord injury.
Some men have the ability to freely separate ejaculation and orgasm from each other.
They can be aware of the critical moment in the sexual response process (the feeling of "inevitable ejaculation"), and once they cross this node, they can't control themselves, and they don't turn their arrows when they shoot.
They successfully trained themselves to temporarily control their sexual reactions before the node. Through this approach, they can delay the occurrence of ejaculation reactions and have more intimate time with their partner during one-time activities, thus obtaining the deep and intense pleasure that they usually do not enjoy. An example of this practice is teaching esoteric sex, where men learn to delay ejaculation as much as possible until they are fully prepared.
Therefore, if the decline in sexual ability is not caused by illness, it can be enhanced through training.