This study was performed to evaluate the effect of chrysin on testicular torsion and detorsion damage in rats in terms of biochemistry, histopathology and immunohistochemistry. The study was performed on Wistar albino rats between 250 g and 300 g. A total of 40 rats were used. Five groups were created with eight rats in each group. Group 1 was the control group, and no torsion procedure was performed. In Group 2, 2 hr of torsion and 2 hr of detorsion were applied. In Group 3, 2 hr of torsion and 24 hr of detorsion were applied. In Group 4, 2 hr of torsion, 2 hr of detorsion and 50 mg/kg intraperitoneal chrysin were applied. In Group 5, 2 hr of torsion, 24 hr of detorsion and 50 mg/kg of chrysin were applied. In the torsion/detorsion groups, the study determined decreases in glutathione and testosterone levels, increases in tumour necrosis factor-alpha, interleukin-4, interleukin-6 and interleukin-10 levels, and increases in expression levels of caspase-3 and caspase-8. Chrysin application reduced malondialdehyde, tumour necrosis factor-alpha, caspase-3 and caspase-8 expression levels. We can say that chrysin can be used to reduce damage in cases of testicular ischaemia/reperfusion. For more reliable results, further clinical trials are recommended.