Most people think having dyslexia means getting letters mixed up.
While this is often a symptom of dyslexia, there are many other factors that go into a diagnosis. A person with dyslexia usually has a difficult time identifying the individual sounds that make up words, and relating those sounds to letters. Not only does the dyslexic individual have difficulty with reading, he or she may also have problems with writing and spelling. It is estimated that 10 to 20 percent of the U.S. population has dyslexia. Although most often discovered when a child is school-aged, people of any age can have dyslexia.