One cause of infertility is problems with reproductive organs and related glands. In some cases, conditions that were present at birth can affect a man's later fertility. Surgery performed during childhood to correct abnormalities in the reproductive system can affect fertility as well.
The following are some examples of conditions that can impact either the production or delivery of healthy sperm, with links to detailed descriptions in the glossary:
- Congenital absence of the vas deferens (CAVD)
- Undescended testes, also known as cryptorchidism
- Hyposadias
- Kallmann's syndrome
- Klinefelter syndrome
- Sertoli-cell only syndrome
