Pillow baldness is not necessarily a lack of calcium, the baby occurs pillow baldness, some are caused by calcium deficiency, but also may be too hard or airtight pillow, etc., the baby friction head caused by the specific analysis is as follows:. 1. The growth and development of the baby needs to consume a lot of calcium, such as calcium deficiency in the baby’s body calcium deficiency, easy to sweat, especially after falling asleep after the head sweating, resulting in the baby uncomfortable, will continue to rub the pillow, a long time on the occipital baldness circle. 2. If the baby sleeps on the pillow is relatively hard, the baby sleeps uncomfortable, or the breathability of the pillow is not good, the baby sleeps with the pillow contact position is easy to sweat resulting in itching, will lead to the baby shaking his head and rubbing to stop the itching, and over time, the formation of pillow baldness circle. Pillow baldness may also have a relationship with other causes, it is recommended that when discomfort occurs timely to the hospital for relevant examinations, clear cause of the symptomatic treatment.