Why does my baby have yellow teeth?

Why does my baby have yellow teeth?

Your baby could have yellow teeth for a variety of reasons. One of the most common is a lack of fluoride in the tap water, or not having fluoride supplements. Your baby's teeth might become yellow at that point. Of course, these yellow teeth they will be lost eventually; you don't have to worry about it. However, if your baby is bottle-fed, and has yellow teeth, you should have your baby evaluated for baby-bottle tooth decay.