Children with dyslexia often have related learning difficulties. Dyslexia itself is almost always accompanied by difficulties with expressive writing and spelling, as these are also problems with manipulation of written language. Although problems with spelling are rarely labeled as a distinct learning disability, such problems are particularly persistent with dyslexia and sometimes are apparent even when the child seems to be a good reader. In addition to differences with language learning, children with dyslexia often have academic difficulties in other areas, such as math. Dyslexia can also lead to behavioral problems that overlap with other disorders, such as ADD/ADHD; and in some cases children with dyslexia also suffer from other unrelated mental or emotional disorders that make treatment of dyslexia more complicated.