“…Such variability might be due to the dissimilar composition of the studied populations, mostly to the severity of the male factor.The observed sperm motility in the present study is comparable with those reported in other studies of infertile men with oligozoospermia (26%) (Shah et al, 2020) or Ghanaian sub-fertile men (23%) (Blay et al, 2020). In another study, about 25% of men from infertile couples had motility of about 32% (Shekha et al, 2019). Although there is no known critical age limit for gamete production in men, evidence suggests that there are declines in semen quality (e.g., volume, motility, and morphology) and male fertility associated with increasing male age (Andolz et al, 1999;Girsh et al, 2008;Dain et al, 2011;Zhu et al, 2011).…”