What should I do if my five-month-old baby doesn’t take a bottle? Understand why your baby won\’t take the bottle. There may be many reasons why your baby won\’t take the bottle, such as inappropriate shape of the bottle, bad taste of the formula, aging nipple, etc. In addition, babies have different needs at different stages of development. Only by understanding why your baby won\’t take the bottle can you fundamentally solve the problem. The first step is to check the bottle and nipple for age or wear. If the nipple becomes looser, your baby may smell the milk in the nipple and not want to eat it. Secondly, the baby\’s taste is also an important reason. Consider switching to a different brand of milk