Objective To investigate the safety and feasibility of hysteroscopic treatment for retained products of conception (RPOC) combined with enhanced myometrial vascularity (EMV) in ambulatory surgery mode. Methods A retrospective analysis was conducted on the clinical data of patients who underwent hysteroscopic treatment for RPOC combined with EMV in ambulatory surgery mode at West China Second University Hospital between May 2021 and May 2024, including their basic information and surgical related conditions. Results A total of 54 patients were included, with an average age of (33.37±4.54) years and an average number of pregnancies of 3.14±1.56. The preoperative blood level of human chorionic gonadotropin was 11.45 (5.00, 82.96) mU/mL. Color Doppler ultrasound showed an average size of pregnancy residue (2.47±0.77) cm. The average peak systolic velocity was (55.13±18.55) cm/s. The intraoperative blood loss was 17.63 (1.00, 300.00) mL. The average surgical time was (30.07±20.64) minutes. The hospital stay was 0.69 (0.50, 1.00) days. There was 1 case of postoperative complications (incidence rate 1.9%), which had the second hysteroscopy to remove retained pregnancy tissue one month after the first surgery due to RPOC. There were 6 cases of postoperative re pregnancy. Conclusion Hysteroscopic treatment for RPOC combined with EMV in ambulatory surgery mode is safe and feasible, and is worth promoting.