Morning @bukkiearegbe, about your question; this is extemely difficult for anyone on this forum to answer because male infertility isn’t just male infertility rather its a spectrum of various symptoms/underlying causes example infection, inherited disorder, hormonal imbalance, dilated veins around the testicle, no/low appearance of sperm in semen, structure of sperm, movement of sperm or a condition that blocks the passage of sperm, sometimes past or present side effects of medications, etc The list goes on and on…
However, going by your narrative you mentioned ”…boost male infertility.”
Who made the diagnoses that this said male is infertile, what was the diagnostic tool/criteria used and why?
Also, has the male in question been placed on any medication in time past to help with the said challenge(infertility).
All this needs to be addressed before any further help can be rendered by anybody either on this forum, in a medical institution or traditional medicine so his health and isn’t put in jeopardy.