The stump in a child depends on his age. If he has already reached the time of tooth replacement, take a radiograph, and if the permanent tooth is already below the root and basically about to erupt, just remove the stump. If the child is still relatively young, and there is very obvious inflammation that cannot be controlled by treatment, or if the inflammation does not completely disappear, it may need to be extracted in order not to affect the eruption of the permanent teeth and the development of the tooth germ. If the inflammation is not particularly severe and does not affect the permanent tooth germ, it can be retained temporarily. However, in children, the stump usually has a very large apical foramen and the extent of inflammation is relatively large, so it is often necessary to extract it. However, in such children, whether the stump should be extracted or not may require a professional doctor to give a professional opinion after various examinations and evaluations.