my baby is 50 days old. y do baby start sucking their fingers.... is it bcoz insufficiency of milk or its a every babies natural habit? wen should i be worried ,that my breast feed is less to his demand..what are the signs or symptoms of insufficiency of milk?

A. The child take finger into the mouth out of two reasons it’s a natural reason also they have this habit and second could be due to teething so right now looking at the age it probably is that the child has gone into general habit when the child is not the childhood cry for feed the child would not be sorted by taking the finger into the mouth