Con: Possible Ear Infection Risk
Middle ear infections are typically the result of either viral or bacterial infections, occurring in the empty space present behind the eardrum. Babies are particularly prone to developing ear infections, so you need to pay attention to certain risk factors in order to avoid long term issues.
For some reason, pacifier use is linked to higher rates of contraction of middle ear infections. Just like SIDS, there’s no direct cause or evidence to be proven here, only a strong connection that is pretty convincing on its own.
Children between the ages of 6 and 48 months have the highest likelihood of developing middle ear infections, so keep an eye out for symptoms if your baby uses a pacifier at this age. Be sure to take your baby to their pediatrician right away if you suspect they have developed an ear infection.