Patient's question:
Here is the English translation of the provided text, with the specified requirements in mind:"Your girlfriend always fails to climax, but you can climax by yourself. Can you tell me what the problem is? Patient: Male, 24 years old, previously in good health."
Doctor's answer:
Ejaculatory dysfunction is a type of male sexual dysfunction. It is characterized by some patients who can achieve a hard erection without difficulty during sexual activity, maintain firmness for a long time without fatigue, but fail to reach climax or achieve ejaculation, let alone experience pleasure. Clinically, it is divided into three types: (1) No ejaculation activity, even after prolonged sexual intercourse or certain forms of climax exhaustion, no ejaculation occurs. (2) Retrograde ejaculation, normal sexual intercourse duration, but no normal semen is expelled after climax, with sperm and fructose found in the urine after intercourse. (3) Anejaculation, refers to the presence of climax but no semen is expelled after ejaculation. It is recommended to seek medical examination to identify the underlying cause.