How do you know if a man is infertile?

Related questions

1. Why do sperm cells need to be bathed with fluids from the prostate gland?
2. What adds special fluids to sperm cells?
3. At what temperature do sperm die?
4. What carries sperm cells from the epididymis to the urethra?
5. Which duct carries sperm from the epididymis to the ejaculatory duct?
6. How does a man feel after releasing sperm?
7. How much sperm can a man hold?
8. What causes a male not to produce sperm?
9. How much sperm does it take to get pregnant?
10. What happens if we release sperm daily?

Tags

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2. #difficulty
3. #semen
4. #medical
5. #intercourse
6. #ejaculated
7. #normal
8. #infertile
9. #signs
10. #cases
11. #usually
12. #appears
13. #there
14. #tests
15. #generally
16. #without
17. #ejaculation
18. #needed
19. #erections
20. #quantity
21. #happen
22. #obvious
23. #naked
24. #appearance