Ejaculation and orgasm are often physiological reactions that occur together, but they are not exactly the same. Ejaculation without orgasm is usually due to physiological or psychological reasons, which may involve several factors:
1. Techniques for controlling ejaculation: Some men use deliberate techniques (such as the "stop-start" method or the "holding" technique) to delay orgasm, but sometimes ejaculation may occur without the feeling of a full orgasm.
2. Psychological factors: Stress, anxiety, or other psychological factors may cause ejaculation without the experience of orgasm. Changes in psychological state may affect sexual response.
3. Medication or health conditions: Certain medications, hormone imbalances, or health problems (such as neurological diseases) may also cause ejaculation without orgasm.