Generally speaking, after uterine scraping, there should be an interval of at least half a year before it can be performed again, but it also depends on the specific condition and the patient. Diagnostic uterine curettage is to scrape the uterine lining by human operation, which will cause certain damage to the uterine lining. If repeated curettage or shorter interval between two curettage operations, it may lead to thinning of the uterine lining, or even lead to preeclampsia or infertility symptoms, etc. Therefore, it is generally recommended that the interval between two curettage operations should be at least half a year. Therefore, it is generally recommended that the interval between two scraping operations should be at least more than half a year. For some special cases, it may also be necessary to perform multiple scraping operations within a short period of time, such as hemorrhage in patients with abnormal uterine bleeding or incomplete evacuation of the uterus in patients with hyperemesis gravidarum. After uterine scraping, it is recommended that women must pay attention to rest and ensure nutrition. Try to avoid sexual intercourse for one month after the operation, and do not overwork. Therefore, it is generally recommended that women should not repeat the diagnostic scraping treatment within half a year after a diagnostic scraping, except in special circumstances, in order to minimize the damage to the uterus, etc. After the operation, pay attention to rest, and if there are symptoms such as abdominal pain, vaginal bleeding, etc., it is recommended to consult a doctor for treatment in a timely manner.