Three months old babies can be held vertically, and two months old can be held vertically. However, the child is smaller, the waist and neck muscles are not very well developed, must be careful to hold the neck and waist, so as not to cause sprains when the baby moves, parents must pay attention to the posture and the length of time to hold. In the first three months of life, the baby’s stomach is not very well developed, and it is easy to overflow after eating milk. After each nursing session, put the baby’s head against the mother’s shoulder and gently pat the back to help relieve the phenomenon of spitting up. Usually pay attention to strengthen the care of the baby, do not hold the baby upright for a long time, the baby will be tired and easily injured, try to let the baby sleep more, which helps growth and development.