Can a one-month-old baby be held upright? ——Understand the physiological characteristics of the baby. The three-month-old baby is in an important stage of growth and development. At this time, the baby\’s head and neck muscles are gradually strengthening, but they are not stable enough. Therefore, if you want to hold your three-month-old baby upright, you need to do so carefully to avoid injury to his body. It is recommended to understand the following points before picking up: 1. Baby’s head and neck muscle development