Heredity and temperament can make for a linguistic late bloomer, as can a parent’s anticipating a child’s every need rather than letting them speak for themselves. Boys often develop speech later than girls, though there’s usually only about a one- to two-month lag. Babies born early often take longer than others to reach milestones, but by age 2 they usually catch up to their peers. Children with chronic ear infections especially during the first year, when a child is starting to process language can result in poor hearing, and thus delayed speech.