宝宝四个多月了，但喜欢摇头，这是什么原因导致的？
A 4-month-old baby's head shaking may be a normal physiological phenomenon or caused by pathological factors, such as calcium deficiency, vitamin D deficiency rickets, skin diseases, central nervous system diseases, etc.
1. Physiological factors: the development of the nervous system of 4-month-old infants is not perfect. With the gradual development of the cerebral cortex, infants begin to move their heads independently, but they are prone to abnormal force, which causes them to shake their heads, which is generally a normal physiological phenomenon.
2. Pathological factors
(1) Calcium deficiency: when the body is low in calcium, it can cause abnormal nerve excitement and increase the activities of all aspects of the body, resulting in the symptoms of 4-month-old infants shaking their heads.
(2) Vitamin D deficiency rickets: the abnormality of calcium and phosphorus metabolism caused by vitamin D deficiency, which makes 4-month-old infants appear the symptoms of shaking their heads, and can also be accompanied by hyperhidrosis, irritability, annoyance, pillow baldness and other symptoms.
(3) Skin diseases: such as head eczema, seborrheic dermatitis, etc., can cause four month old infants to have uncomfortable symptoms such as head itching, which can lead to their shaking their heads.
(4) Central neuropathy: such as encephalitis, intracranial tumors, etc., can cause the infant's intracranial pressure to rise, headache and other discomfort symptoms, resulting in 4-month-old infants shaking their heads, but also accompanied by sleepiness, poor mental state and other symptoms.
After excluding the baby's physiological head shaking, it is recommended to take the 4-month-old baby to the hospital in time to clarify the cause of head shaking and actively treat it to avoid delaying the condition.
