Abstract:Objective To observe the effect of pioglitazone/metformin tablets combined with desogestrel/ethinyl estradiol tablets in treating infertility in patients with polycystic ovary syndrome (PCOS).Methods The medical records of 83 PCOS patients with infertility treated at Xi'an People's Hospital from May 2022 to October 2024 were retrospectively analyzed and divided into the observation group (42 cases treated with pioglitazone/metformin tablets and desogestrel/ethinyl estradiol tablets) and the control group (41 cases treated with desogestrel/ethinyl estradiol tablets) based on the treatment regimens. Both groups were treated for 3 months. Levels of sex hormones [estradiol (E2), luteinizing hormone (LH), and follicle-stimulating hormone (FSH) ] and serum progesterone (SP), clinical efficacy, ovarian volume, follicle count, serum indicators [soluble receptor for advanced glycation end products (sRAGE), total antioxidant capacity (T-AOC), tumor necrosis factor-α (TNF-α), and oxidative stress index (OSI) ], and adverse reactions were compared between the two groups.Results After treatment, levels of E2, FSH, and SP in the observation group were significantly higher than those in the control group (all P < 0.05), whereas LH levels were significantly lower (P < 0.05). The changes in E2, LH, FSH, and SP levels before and after treatment were all significantly greater in the observation group than in the control group (all P < 0.05). The overall clinical efficacy rate was significantly higher in the observation group compared with the control group (P < 0.05). After treatment, ovarian volume and follicle count were significantly lower in the observation group than in the control group (both P < 0.05), and the changes in ovarian volume and follicle count before and after treatment were significantly greater in the observation group (both P < 0.05). Post-treatment levels of sRAGE, T-AOC, levels of TNF-α, and OSI were all significantly lower in the observation group than in the control group (all P < 0.05). Moreover, the changes in levels of sRAGE, T-AOC, levels of TNF-α, and OSI before and after treatment were significantly greater in the observation group (all P < 0.05). There was no statistically significant difference in the overall incidence of adverse events between the two groups (P > 0.05).Conclusion Pioglitazone/metformin tablets combined with desogestrel/ethinyl estradiol tablets are effective in the treatment of PCOS patients with infertility. This combination regulates the levels of sex hormones and serum TOS and OSI, improves clinical symptoms, mitigates inflammation, and is safe and reliable.