Five-month-old babies can sit for a short period of time, but not for a long time, which is not conducive to the development of the baby’s spine and can easily lead to the bending of the baby’s bones. Five-month-old babies can practice sitting, but pay attention to control the time, not too long, because the five-month-old baby’s bone development is not very perfect, long time sitting is easy to affect bone development. The baby’s growth and development is regular, pay attention to gradual, with the child’s neck and back, lumbar muscle strength, control ability to enhance, you can extend the sitting time. More than five months when the baby practice sitting, parents pay attention to observe the baby’s reaction, if the baby cries, parents should stop practicing in time, do not force.