Parents should first confirm whether the baby has mental retardation. Mentally retarded babies are obviously uninterested in everything around them. Their faces are always dull, their eyes squint and their mouths are watering. Under normal circumstances, the baby can imitate the sound in about seven or eight months, and can call his parents at about one year old. If these abilities are displayed later, it is likely to be a phenomenon of mental retardation.

When the baby's intelligence is low, we should first find out the reason and find out the corresponding treatment according to the reason, so that the intelligence can return to normal. If it is caused by psychological factors, then parents should pay attention to spend more time with their children, give them correct psychological counseling, and improve their intelligence. Or take some auxiliary measures for counseling and training according to the specific situation of the body, so that the intelligence can be restored to normal level. Parents can make their baby drink more milk when preparing food for him. Milk is rich in nutrition, which helps to improve cognitive ability and make the brain work efficiently.