It is normal for babies over three months old to have unsteady head lifting, which may be caused by slower development, lack of training and other reasons. As the baby is 3 months old, the cervical spine is not yet fully developed, so it can not support the movement of lifting the head or the weight of the head, and each baby’s neck muscles, cervical vertebrae and other development and speed is not the same, in the 3 ~ 4 months to lift the head to be gradually stabilized, so this is a normal situation. Or parents like to hold the child for a long time, may lack of training on the baby’s head up, resulting in the baby’s head up is not stable is also a normal situation. Parents do not need to be overly nervous at this time, and can promote the gradual stabilization of the baby’s head-up movement through daily touch, massage and corresponding training. If your baby is still unsteady in lifting his head beyond the appropriate age, it is recommended to go to the hospital in time for early and regular treatment.