3 months of infants as long as the baby can raise his head, can be appropriate vertical hold, but the time should not be too long, and the need for appropriate support, otherwise it is easy to cause injury to the baby’s spine. 3-month-old babies cervical spine physiological curvature has been formed, this time the baby can raise his head more stable, so the baby’s head can be upright when the vertical hold. Due to the baby’s age, the neck muscle strength is relatively weak, coupled with the baby’s spinal development is not yet complete, if the vertical hold time is too long, it is easy to cause spinal injury, affecting the growth and development of the baby. 3 months of babies vertical hold, one palm to support the baby’s head, the other hand to support the baby’s hips, to keep the baby’s spine in a straight line, this can reduce spinal pressure, to avoid spinal injury.