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Recent decline in sperm motility among donor candidates at a sperm bank in Denmark Lassen E, Pacey A, Skytte AB, Montgomerie R. Recent decline in sperm motility among donor candidates at a sperm bank in Denmark. Hum Reprod. 2024 Jun 4 (Denmake, Canada, UK) Abstract Denmark, 2017 - 2022 Variation in semen quality among men applying to be sperm donors Summary answer The motile sperm concentration and total motile sperm count (TMSC) in ejaculates, both measures of sperm quality, declined by as much as 22% from 2019 to 2022. What is known already Questions remain about whether human semen quality has declined in recent years. Resolution of this issue has important implications for human fertility Study design, size, duration Semen quality of ejaculates previously collected from 2017 to 2022 Sperm bank locations, four cities in Denmark 6,758 donor candid
