Hyzyd, my Baby and child sucks his fingers almost all the time...is it okay?...should I stop him? How? I observed that babies generally suck their thumb to soothe themselves. My pediatrician told me that it is good, because they need to learn how to rely on their own resources. The ability to regulate or control one's behavior and emotions is an important developmental challenge. When my child sucks his thumb, he's just finding ways to make himself feel better without my help. It's comforting to know that but it's quite disturbing on the other hand. Honestly I'm concerned now especially that Hyzyd is almost 15 months . There are times that it is more irritating. They said my baby will stop when he's ready and has developed other ways of soothing himself. The question now is WHEN? The American Dental Association says most children can safely suck their thumb — without damaging the alignment of their teeth or jaws — until their permanent teeth begin to appear. ( ...