The study compares the microbiome differences in the endometrium between normal people and patients with uterine diverticula after cesarean section and aims to discover the essential microbes and their metabolites that highly associate with the repair of myometrium through metagenomics and metabolomics. It verifies that flora disorder in the endometrium is the important cause of poor uterine repair after cesarean section. Then these patients with uterine diverticula receive the transvaginal repair surgery. Through the follow-up with them, we gain the microbiome differences of the endometrium before and after the surgery and show the validity of transvaginal repair surgery in the level of microbiome and metabolism.

Inclusion Criteria:

have one cesarean delivery, have intermenstrual spotting after the cesarean section or Residual muscle thickness was less than 3.0 mm at the preoperative stage underwent magnetic resonance imaging and transvaginalultrasound to evaluate the size of the defect and the Residual muscle thickness before surgery have vaginal repair of Cesarean Section Diverticula write consent for operation.

Exclusion Criteria:

have a history of endocrine disorders have coagulation disorders use of intrauterine devices have sub-mucous myoma have endometrial diseases have endometrial cysts, uterine fibroids, and adenomyosis

30 Healthy women with cesarean section without Cesarean Section Diverticula 30 Healthy women with cesarean section with Cesarean Section Diverticula