It may be normal for a 7 year old to not lose teeth because of late development. Or it may be due to retained milk teeth.
Due to the variability of the child’s individual physique, some children develop late and may not lose their milk teeth at the age of seven. Parents are advised to bring their children to the dental hospital for a radiographic examination so as to understand the condition of the teeth.
Seven-year-old children do not lose teeth may also be due to retained milk teeth, the causes of which mainly include abnormal root resorption of milk teeth, inherited permanent teeth eruption obstacles or congenital absence, rickets, dwarfism and so on. The main manifestation is that the affected teeth have reached the age of replacement, but the milk teeth have not yet fallen out in time, and there is a double row of teeth.
There are many reasons why 7-year-old children do not lose teeth, parents need to pay attention, you can go to the regular hospital, to find out the cause of the disease.