Infertility

Last revised by Henry Knipe on 2 May 2020

Infertility is common, affecting 15-20% of couples, and is defined as the inability to conceive after one year of regular unprotected intercourse 3,4Subfertility is a synonym 4. It can be due to a variety of both female and male factors, and these are discussed in separate articles:

ADVERTISEMENT: Supporters see fewer/no ads