Levofloxacin Plus Metronidazole Suppositories Versus Levofloxacin Co-administered with Metronidazole Tablets in Chronic Endometritis

Inclusion Criteria: * Infertile patients aged 20-42 years * Hysteroscopy and endometrial biopsy were performed, and the * Pathological diagnosis was chronic endometritis * Serum FSH level on the second day of menstruation was ≤12U/L * Agree and sign the informed consent form Exclusion Criteria: * Patients with the following diagnoses: submucosal myoma; Uterine malformation or previous surgery for correction of uterine deformity; Intrauterine adhesions; The previous history of pelvic tuberculosis or endometrial tuberculosis or the current pathology suggested endometrial tuberculosis; Endometrial hyperplasia or endometrial cancer * Patients with spouse, previous fetal or child chromosomal abnormalities who plan to undergo preimplantation genetic screening * Patients with a history of allergy to study drugs