Men suffering from infertility may not show any obvious symptoms at all, and they can go unnoticed until a man tries to have a baby. If you experience any of the below signs, you should talk to your doctor as soon as possible:

  1. Use of testosterone, testosterone products or bodybuilding supplements.
  2. Varicocele of the testicles.
  3. Problems maintaining an erection.
  4. Issues with ejaculation.
  5. Small, firm testicles.
  6. Changes in hair growth