Children are the future and hope of a family, and every family has high hopes for their children. The healthy growth of a child is the biggest concern of every parent. If a child has developmental problems, it can be a disaster for a family. The incidence of pediatric growth retardation is between 6% and 8%, which refers to the slowing down or abnormal sequence of growth and development. In the process of the child’s growth, once the following performance, as parents must pay attention to. Early feeding difficulties, salivation, easy to be frightened of noise, enhanced hugging reflex with crying; Second, at 3 months of age, no standing or striding, fist clenching, still thumbs in April, hands do not open, head still wobbling in 4-5 months; Third, after 5 months, still can not reach for objects, still can not laugh, do not recognize people, slow reaction, muscle flaccidity can not turn over, slow and stiff movements; Fourth, do not like bathing The child is not able to roll over, good jerking, asymmetrical bilateral limb movements, premature development, reflexive rolling, not segmental rolling, poor crawling awareness, no hand support for crawling, no separation action, much sleeping, purposeless hyperactivity, and short attention span. These are the most common phenomena of developmental delay in children, and they are easy to distinguish. As parents, we must be more careful and more attentive, and pay more attention to the developmental changes of our children. If you can find out the cause of your child’s developmental delay in time, you can determine the treatment plan according to the different causes. The common causes are related to normal growth variations, chromosomal abnormalities, metabolic diseases, bone diseases, etc. Although these causes are extremely difficult to deal with, there is still hope for most of them, and we should never give up lightly for the healthy growth of our children.