Babies have their own growth and development characteristics at each time, of which the head lifting action varies from month to month. At 1-2 months old, babies can lift their heads 45 degrees when lying prone and can support them for about 30 seconds; at 3 months old, babies can hold their necks more steadily and lift their heads 45 degrees; at 4 months old, babies can lift their upper bodies completely when lying prone and can lift their heads 90 degrees from the plane, and hold their heads upright, smoothly and with their backs straight when holding them vertically. I. The reasons why babies are late in raising their heads There are many reasons why babies are late in raising their heads, the specific reasons are as follows: 1. physiological factors: mainly because of their own physique, environment, feeding and other factors that lead to differences in the time of raising their heads, parents should not worry too much; 2. pathological factors: such as the presence of cerebellar developmental malformations, central cerebral nerve dysplasia or cerebral palsy, calcium deficiency, etc., can lead to their late in raising their heads. If the baby is late in raising his head, parents can take some methods to train the baby to raise his head, the specific training methods are as follows: 1, supine position guidance method: one hour before the baby eats milk, fasting awake state prone head raising exercises, mainly with language and toys to guide the baby to raise his head. If the baby can’t lift his head, put a small pillow under the baby’s chest through the bilateral armpits; 2.Mother and child face to face guidance method: the baby lies prone on the mother, fix the baby’s upper arm and hand joints, keep the hand support position, talk to the baby, sing or encourage the baby to reach out and touch the mother’s face. The following points should also be noted when training your baby to hold his head up: 1. Choose a suitable time for training: pick a time when your baby is in a happy mood, and avoid doing it immediately after he eats milk; 2. child turn on his side and stroke his back to relax his muscles; 4. Soothe and praise the baby: it is good for the baby to build self-confidence and to feel relaxed.