Decline in semen quality of North African men: a retrospective study of 20,958 sperm analyses of men from different North African countries tested in Tunisia over a period of 6 years (2013-2018).

Background: According to numerous studies from around the world, semen quality seems to have declined dramatically in recent times. However, the data available on male fertility status and semen quality in North Africa are limited.

Aim: To investigate the status of semen quality in North-African men and to understand its variations.