Infertility is not being able to conceive after a year of regular, unprotected sex. It may be due to male or female factors or both. Sometimes, the cause is in both partners or may not be known.
Male infertility is caused by problems making enough healthy sperm that are able to travel to an egg. Some causes may be:
Infertility in men. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/infertility-in-men-23. Accessed November 11, 2021.
Male infertility/andrology. American Society for Reproductive Medicine website. Available at: https://www.reproductivefacts.org/topics/topics-index/male-infertility. Accessed November 11, 2021.
Overview of infertility. Merck Manual Professional Version website. Available at: https://www.merckmanuals.com/professional/gynecology-and-obstetrics/infertility/overview-of-infertility. Accessed November 11, 2021.
Last reviewed November 2021 by
EBSCO Medical Review Board
Mary-Beth Seymour, RN
Last Updated: 11/12/2021