Fetal arrest can be serious when it is detected after three weeks and may have an effect on the uterus, leading to intrauterine infections, and scraping the uterus can lead to thinning of the uterine lining and adhesions in the uterine cavity. Fetal arrest is a condition in which the fetus has died at some point and is unable to progress further. If this happens after three weeks of fetal arrest, this will inevitably lead to intrauterine infections. If there is an increase in intrauterine infections, this is likely to lead to adhesions in the uterine cavity, which can be very detrimental to another pregnancy. Clearing the uterus after fetal arrest may lead to thinning of the uterine lining and adhesions in the uterine cavity, so it is important to seek medical attention in a timely manner. You should have regular checkups after pregnancy and seek early medical attention if you feel unwell.