It is normal for babies to sleep with their heads tilted back, and a few may have brain dysplasia.
1. Normal phenomenon: babies sleep in a variety of strange postures, because the baby’s neurodevelopment is not yet perfect, the appearance of some adults seem strange posture is also a normal phenomenon, sleep like head tilt, especially within 3 months of age, the cervical vertebrae can not support up the head, will maintain the head tilt position.
2. Insufficient brain development: if the baby gradually grows up, still like head tilt back, 4 ~ 5 months of age when picked up when the head can not be erect, should consider the brain development is incomplete.
Babies like to sleep head back, there may also be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.