After the milk teeth are loosened, most of them take about a month to fall out, and the exact time varies from person to person, and may be one to two weeks or two months. Loose milk teeth mean that it is time to replace the teeth. After a period of time, the loose milk teeth will fall out by themselves, and then the corresponding permanent teeth will erupt. However, how long it takes for a loose tooth to erupt is related to dietary habits, the degree of root resorption, and other factors, and there is no fixed time, most of which may take up to a month. There is a great deal of individual variation in how long it takes for teeth to fall out after a loose tooth. Some children may lose their teeth within one to two weeks, while others may lose their teeth only after two months. Parents should instruct their children not to fiddle with their teeth, as this may cause infection or root damage. If your child’s loose teeth do not cause any discomfort, you can observe them for a while, but if they are already affecting your child’s chewing or the corresponding permanent teeth have already erupted, it is recommended that you go to the hospital stomatology department as soon as possible for consultation and symptomatic treatment.