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My 3.5 months baby has frequent shiver in right leg and chin, mainly when sleeping. is this common or should i be worried?
Newborn response: The obvious answer is that they are cold, but if they are very young, under 3-4 months, they are likely having a moro reflex, a primitive muscle reflex where moving them a little bit or jostling them causes the arms, legs, or jaw to "quiver" as if they are shivering. Older children shiver in an effort to raise temperature, such as when generating a fever, so if they are shivering, monitor temp. ...Read moreSee 1 more doctor answer