In clinics where diagnostic curettage has been done because of abnormal thickening of the endometrium, menstruation will occur about one month after the procedure. Because diagnostic curettage is a scraping of the endometrium, the endometrium slowly transitions from the proliferative phase to the secretory phase after the procedure before the endometrium is clinically shed and menstruation occurs again. It takes about a month or so. It is recommended that after diagnostic curettage, care must be taken not to get infected, mainly not to have sex, not to take a bath, and to give proper rest within one month, and then to give the corresponding clinical treatment according to the pathological diagnosis after surgery. If you have not had your period for 40 days after the operation, it is recommended to have an ultrasound examination to understand the thickness of the endometrium, mainly to rule out the possibility of endometrial damage causing uterine cavity adhesions.