One year old babies with low IQ may appear slow reaction, poor social behavior, dull eyes and other aspects of the performance, because there are individual differences, so each baby performance form is different. One year old baby if social behavior, language development are behind other children of the same age, parents need to pay attention to observation, due to the limitations of the baby’s age, so for the time being can not see the development of the brain, if the baby usually appear to some things or action to make a slower response, or unwilling to communicate with other children, stony-eyed and other symptoms, we need to be vigilant about the situation of the low IQ. The baby’s low intelligence may also have other symptoms, parents need to pay attention to, more observation, more communication with the baby, if you can not communicate with parents normally, you need to go to the hospital for relevant examinations.