Background: The examination of sperm quality is the main priority for infertility diagnosis. Based on previous study with mice, active ingredient of Mucuna pruriens L. or koro benguk (Papilionaceae), the L-dopa, may affect the quality of spermatozoa. Objective: Research was to study the effect of 96% ethanol fraction Mucuna pruriens seed on spermatozoaquality of mice exposed to 2-Methoxy ethan…