Endometrium appearance in a patient with caesarean scar diverticulum

A 36-year-old Chinese woman was referred to our Reproductive Medicine Clinic with secondary infertility. She explained that six years ago, cesarean section was performed because of breech presentation smoothly. Her menstrual cycle became irregular with prolonged and postmenstrual spotting lasting between 10 and 15 days four year ago; before this, her periods last 28–30 days with 4–5 days of bleeding.