As the saying goes, “two lift four turn six will sit, seven roll eight crawl week will walk”, this refers to the procedure and the approximate time of the baby’s movement development. According to the normal development, after the baby’s head can be better erect and stable, from four months, the baby should start to learn to turn over. The baby’s turning action is not learned all of a sudden, before the baby will really turn over on their own, most of the signs before turning over action, mom and dad can observe carefully oh, timely help baby a, can be faster to achieve the “turn over dream”: a, baby from birth, basically lying on his back, when the baby lying on his back At the same time legs upward lift, rocking, accompanied by a slight trunk or waist rotation, this time the baby is to us signal: I want to learn to turn over! At this point, mom and dad can properly push down the baby’s buttocks, give some force, so that the baby slowly experience the process and fun of turning over. Second, the baby can actively and freely lift his head in the prone position, the chest can also be lifted off the bed, and can turn his head significantly with the rotation of the teasing object, which suggests to us that the baby’s neck and back muscle strength are good, can consciously help the baby practice turning over. Third, the baby appears slightly to a side, but not completely sideways when the past, this time the baby has not mastered the essentials of turning over, at this time, the mother can follow the trend of lightly push the baby’s back and farts or in the same side with toys to tease the baby, or gently hold the baby’s arm to the side of the direction of pull, to train the baby to turn over. For every normal baby, the time to learn to roll over successfully is not always the same. Some babies may cross the turn-over action and will sit and stand and crawl directly by the corresponding month; some babies may be too fat and their movement development will be affected; some babies may sit and stand until 5 or 6 months at the same time before they turn over …… In either case, although by the age of 4 months after birth when they should turn over, and the baby does not Turn over, but as long as the 4 month old baby other development is normal, such as vertical head, head lift (including prone head lift) and other abnormal, there is not necessarily too anxious, can wait, and can consciously help the baby training turn over; if at this time, the baby’s neck, back muscle strength is weak and vertical head, head lift is not normal, or too strong, such as angular arch, etc.; even to 6, 7 months still will not turn over, then you should quickly take the baby If your baby still can’t roll over at 6 or 7 months, you should take your baby to the hospital for a proper examination. In addition to rolling over, the development of the baby should be closely monitored by the family as a mother and father. If one of the following situations occurs, you should immediately go to the hospital for examination: 1, the baby’s arms and legs often “jerk”, “very strong” flexion or straightening, there is resistance when moving. 2, after the full moon can not erect the head, the head always tilted back. 3.Can’t lift the head at 3 months. 4.Fourth month, the hand still clenches the fist and does not release, and the thumb is close to the palm of the hand. 5.The arms cannot support the body when lying in the prone position at five months. 6.In six months, when holding the standing position, the pointed foot and the heel cannot fall to the ground. 7, seven months can not pronounce ba, ma. 8.8 months can not sit. 9.Hands and head shake frequently. 10.Can’t look at the toys in front of them properly or react poorly to sounds.