Check on his fluoride intake. I know if too much fluoride can cause bad teeth. I give my sone no fluoride added baby water and fluoride toothpaste Needs to balance it out bring it up to ur pediatrician
@Jessica @Brittanythank you both for your comments! Just wanted to comment in case anyone sees this post later with the same question ! My son's teeth were being stained by the liquid iron supplement he was prescribed! We switched him to one that is pill form & dissolvable 🥰 and we brush his teeth immediately after getting takes it!
I feel like our son’s teeth used to look almost gray when he first started getting his teeth. We just kept brushing them every night and morning and they’re white now.