Preliminary Study of Uterine Healing After Caesarean Section: CLInico-ECHOgraphic and Anatomopathologic COrrelation

Inclusion Criteria: * Common to all groups: * Adult patient, * Signed consent for participation in the study * Patient affiliated to a social security scheme (excluding AME) Group 1: * Support for a scheduled or emergency caesarean (excluding patients having an emergency caesarean (red code: caesarean within 15 minutes)) * Scarred uterus: having already benefited from a caesarean section Group 2: \- Surgical management of caesarean section scar dehiscence after a caesarean section Group 3 (control): * Support for a scheduled or emergency caesarean (excluding patients having an emergency caesarean (red code: caesarean within 15 minutes) * Healthy uterus: no history of caesarean section (history of vaginal delivery or first pregnancy) Exclusion Criteria: * Disorder of hemostasis at risk of bleeding * Anatomopathological sampling not feasible * Patient with a history of upper genital infections * Patient under legal protection (guardianship, curatorship) * Patient who does not speak or understand French * Patient unable to answer questions or with difficulty in expressing herself