How can male infertility be treated to be cured?

Patient's question:

Married for many years, I have never been able to conceive a child. The hospital examination said I suffer from male infertility. What happens with male infertility? What causes it? What happens with male infertility?

Doctor's answer:

Etiology of male infertility
1. Age factors
2. Environmental factors
3. Personal behavior
Poor behavioral habits are also important causes of infertility. Such as smoking, drug use, chronic alcoholism, poor deep sleep habits, and a history of promiscuity.
4. Diseases
Spermatogenesis dysfunction caused by conditions such as undescended testes, varicocele, mumps, chromosomal abnormalities, and toxic drugs. Epididymitis, seminal vesiculitis, or prostatitis, as well as urethritis caused by infections such as gonorrhea, syphilis, chlamydia, and mycoplasma.