“…Several herbal plants used in African traditional medicine have demonstrated male fertility enhancement or regulatory potentials such as increased sexual desire ( Subramoniam et al, 1997 ; Zheng et al, 2000 ), improvement of hormonal stimulatory activity ( Xu et al, 2003 ; Ajuogu et al, 2019 ), and increased semen quality characteristics ( Gonzales et al, 2001 ; Nantia et al, 2009 ; Ajuogu et al, 2019 ). Some of the herbal plants are reported to produce antifertility effects, which include an impairment on sperm production capacity, reduced semen quality ( Reddy et al, 1997 ; Shaik et al, 2017 ; Ajuogu et al, 2018 ), reduced serum testosterone and luteinizing hormone (LH) levels ( Hadley et al, 1981 ), and disrupted the hypothalamic–pituitary axis ( Hadley et al, 1981 ; Nair and Bhiwgade, 1990 ).…”