Introduction: Investigating the effects of colocynth pulp on levels of testosterone and changes in the reproductive system organs in streptozotocin-induced diabetic rats. Methods: In this study, 32 Wistar rats were divided into four groups of normal (N), normal+colocynth pulp (N+C), diabetic control (D), and diabetic+colocynth pulp (D+C). Groups N and D received orally 2 mL normal saline for tw...