As a newborn baby's skin is very sensitive, it is prone many skin problems. Diaper rashes are one of the most common skin problems that newborn babies face. Any baby who wears a diaper is likely to get rashes at least once. Diaper rashes occur due to a number of reasons. It could be because of low quality diapers, diapers being too tight, if baby is left in a soiled diaper for hours etc.