Growth retardation in infants often manifests itself in a variety of ways. These include physical developmental delay; motor developmental delay; language developmental delay; intellectual developmental delay; psychological developmental delay and so on. To prevent retarded growth and development of infants, parents need to pay more attention to infants and guidance, the following with you to analyze some of the performance of motor retardation. Motor retardation refers to the fact that children’s motor development is more backward than normal children of the same age. For infants younger than 6 months old, parents should pay more attention to the following situations and consult the doctor in time to deal with them. 1, the baby’s body is soft, the movement is obviously reduced, this is the performance of low muscle tone, in infants one month period performance is more; body hard, that is, the performance of muscle tone hyperactivity. 2, slow reaction, mostly in hearing and vision. This is the early manifestation of hearing system damage or mental retardation. 3.Abnormal head circumference, head circumference is a morphological indicator of brain development, and brain-injured babies often have abnormal head circumference. 4.Poor weight gain, reduced feeding, and weak breastfeeding. 5.Fixed posture, mostly caused by abnormal muscle tone due to brain injury. For example, bow-angle anteversion, frog position, inverted U position, and so on. 6, do not smile, 3 months of infants will normally begin to smile phenomenon, motor retardation will not smile or delay the time of laughter. 7, small hands clenched, often clenched fists can not open, or thumb inward, especially one side of the upper limbs there can not reach out to grasp things. 8, body torsion, 3 ~ 4 months of infants appear body torsion phenomenon, often suggesting extrapyramidal injury. 9, head instability, such as 4-month-old infants sitting and standing head can not be upright or can not raise the head. 10. Poor eye movements in 3- to 4-month-old infants. All of the above phenomena are manifestations of delayed motor development, because children continue to grow and develop, and various phenomena will be different with the development. Therefore, it is important to provide accurate information about the age of the child in order to diagnose and treat the symptoms. If your baby is experiencing any of these conditions, you should consult your doctor and seek treatment promptly!