Children with developmental delays who have mild symptoms or temporary developmental delays can partially return to normal through regular rehabilitation, while those with severe symptoms or hereditary conditions are less likely to recover. If the symptoms of developmental delay are mild, such as mild speech and movement disorders, most of them can return to normal through rehabilitation. If the developmental delay is temporary, such as due to a lack of nutrients or illness, most children will be able to return to normal through nutritional supplements. If the symptoms of generalized developmental delay are severe, rehabilitation therapy and medication may not be able to reach a normal level within a short period of time. However, it is still recommended to adhere to rehabilitation therapy, which can alleviate the symptoms caused by developmental delay. Children with developmental delay can return to normal if they receive rehabilitation treatment at the rehabilitation department of a regular hospital as soon as possible.