The development of head control is the first to be completed, and is the basis for the development of sitting and walking movements. If there is a problem with the child’s motor development, it will first show up in the head control development. Here we talk about the normal head control development and common early abnormalities in infants, so that parents can understand their children and prevent some parents from adding to their worries and some parents from avoiding treatment and missing the time for treatment. In newborns, the head is completely uncontrollable, and the head cannot maintain the midline in the supine position and tends to deviate to one side. The child’s neck is also soft, the head, neck and shoulders are in a plane in the supine position, and the head and shoulders will form an arch when the head is tilted back with increased muscle tone, called the “arch bridge phenomenon”, which is abnormal. The child’s head cannot be raised in the prone position, so there is often a risk of suffocation if the newborn is lying prone on a soft bed. Therefore, the child’s head cannot be erected at all, so the child should not be held vertically at this stage. In 1 month olds, the head is still not easily held in the middle position when lying on the back, and the head is completely tilted back when pulled up. In prone position, the head can be lifted instantly and repeatedly for at least 3 seconds. When held vertically, the head can be held upright for a few seconds. For 2-month-old, the head can be held in the midline position in the supine position, and the head is still tilted back when pulled up to the sitting position, but there are forceful movements and the head is easily tilted to the side. In prone position, the head can be raised 30-45 degrees. The head can be held upright for 20-30 seconds. In the 3-month-old, the head can be easily kept in the midline position in the supine position, and the head can be on a horizontal line with the trunk when pulled up to the sitting position, with obvious forceful movements. In prone position, the head can be lifted 50-90 degrees with elbow support action. When held vertically, the head can be easily erected, but it is not yet stable, and the head twisting movement is slow. At 4 months of age, the head is flexed forward when pulled up from the supine position to the sitting position, and the lower jaw can be held against the chest. In prone position, the head can be lifted 90 degrees, with elbow or forearm support action, and the chest can leave the bed. The head can be erect and stable when held vertically, with occasional swaying and flexible head twisting movements. At 5 months of age, the child’s head control is already very stable, and the body will sway when held vertically, but the head does not sway, and head control development is basically complete. To detect abnormalities early, there must be a normal standard in mind. If the child’s head is still not straight at 3 months of age, the head is often tilted to the side, or the “arch bridge phenomenon” occurs when lying on the back, or there is a significant delay in the development of head control, it is recommended to visit the pediatric rehabilitation department to rule out potential diseases.