Abstract:Objective To investigate the effects of goserelin combined with dienogest on postoperative patients with endometriosis.Methods A retrospective analysis was conducted on 90 postoperative patients with endometriosis treated at Qionglai Hospital of Sichuan Provincial People's Hospital from May 2022 to May 2025. According to different treatment regimens, the patients were divided into a control group and an observation group, with 45 cases in each group. The control group received dienogest therapy, while the observation group received goserelin combined with dienogest. Clinical efficacy, menstrual volume [pictorial blood assessment chart (PBAC) score], dysmenorrhea severity [visual analogue scale (VAS) scores], sex hormones [follicle-stimulating hormone (FSH), estradiol (E2), luteinizing hormone (LH) ], serum factor [carbohydrate antigen 125 (CA125) ], and adverse reactions were compared between the two groups.Results The overall effective rate in the observation group was higher than that in the control group (P 0.05). After treatment, the PBAC and VAS scores in the observation group were lower than those in the control group (P 0.05). The differences of PBAC and VAS scores before and after treatment were greater in the observation group (P 0.05). After treatment, the levels of FSH, E2, and LH in the observation group were lower than those in the control group (P 0.05). The differences of the levels of FSH, E2, and LH before and after treatment were greater in the observation group (P 0.05). After treatment, the CA125 level in the observation group was lower than that in the control group (P 0.05). The difference of the CA125 level before and after treatment was greater in the observation group (P 0.05). There was no statistically significant difference in the overall incidence of adverse reactions between the two groups (P 0.05).Conclusion Goserelin combined with dienogest in postoperative patients with endometriosis can effectively relieve dysmenorrhea, reduce menstrual volume, suppress sex hormone and serum factor levels, and demonstrates good safety.