Why do a four-month-old baby's legs often shake

Patient's question:

A friend of mine recently encountered this issue and stayed in the hospital for a period of time. I visited him, and he said he was a bit in pain and couldn't sleep at night, which greatly affected his condition. Why do four-month-old babies' legs often shake?

Doctor's answer:

Hello, there are several reasons why a baby's feet might tremble. It could be due to chills caused by improper warmth and care, or it might be muscle twitching caused by calcium deficiency. Additionally, local muscle or nerve spasms can also cause trembling symptoms.
Hello, according to what you've described, children generally learn to walk by the age of one and a half at the latest. If they still haven't started walking, a thorough check-up is needed to first determine if there is a calcium deficiency, and then to investigate other potential causes.

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