What are the symptoms of vitamin D deficiency?
Disease description:
Do children often lack vitamin D? I'm not sure whether my child has a deficiency or not. Could you tell me what signs indicate a vitamin D deficiency?
Doctor's answer (1)
Dr. Wang Lei
Early signs of vitamin D deficiency include excessive sweating, irritability, restless sleep, and muscle laxity. These occur because patients experience poor sleep quality at night, frequently tossing and turning, sweating during sleep, and easily waking up at the slightest noise, leading to symptoms such as night terrors and excessive sweating—indicative of nervous system involvement. In more severe cases, hair loss on the pillow may develop, along with reduced muscle tone and delayed motor development.
