 Polycystic ovary syndrome, COS, is a hormonal disorder affecting approximately 5 to 10% of women of reproductive age. It is characterized by a regular menstruation, excess male hormones, and ovarian cysts. Additionally, it has been linked to increased activity of the renin-angiotensin system, RAS, which can lead to hypertension. In this study, researchers assessed the role of the pro-inflammatory cytokine interleukin, 17, IL, 17, in increasing blood pressure in patients with COS. They found that IL-17 levels were higher in patients with elevated blood pressure than in those with normal blood pressure. Furthermore, they observed that the IL-17 levels correlated positively with the increase in blood pressure over a 24-hour period. These findings suggest that IL-17 plays a key role in the development of hypertension in patients with COS.