Many babies have a habit of needing a fixed comforting object to sleep, and only in the company of this comforting object can they sleep peacefully. Comforters vary from person to person, such as small pacifiers, handkerchiefs, pillowcases, toys and so on. Some babies must be held, patted or coaxed by their mothers to fall asleep. Some babies cry before they go to bed, the mother in order to put the baby to sleep, let the baby eat the milk to sleep, over time, the baby only contain the mother’s nipple to sleep the habit. The habit of sleeping with the nipple is not good. The normal development of the baby’s teeth will be adversely affected by the deformation of the upper and lower jaws, resulting in the upper and lower teeth can not bite together properly; in addition, the mother’s breast is easy to block the baby’s mouth and nose, there is a risk of suffocation of the baby, all of which is detrimental to the growth and development of the baby. Therefore, mothers should pay attention. You can’t let your baby get into the habit of sleeping with the nipple, and if it has formed a habit, it should be corrected. There is no special way to change the habit, but only gradually, which requires the mother to be a bit more ruthless. Of course, you can also use some aversion therapy, apply something on the nipple, but this method will affect the baby to eat breast milk, or even refuse breast milk. At this stage, you can use some alternatives, such as a comfort pacifier. Then change it.