Dyslexia: Symptoms & Signs

Medically Reviewed on 3/11/2020

Dyslexia is a specific type of learning disability characterized by difficulties with accurate and/or fluent word recognition when reading, along with poor spelling and decoding ability. The problem with reading in people with dyslexia is often unexpected in relation to their intellectual ability. Dyslexia is the most common learning disability in children. It lasts throughout life.

Signs and symptoms of dyslexia include

  • difficulty learning to recognize letters and words,
  • problems with reading,
  • difficulty spelling,
  • problems remembering content,
  • difficulty with vocabulary words, and
  • delays in early language development.

Associated symptoms can include difficulty copying and distinguishing left from right. Dyslexia may cause children to experience depression or social withdrawal.

Cause of dyslexia

Doctors do not understand the cause of dyslexia, but they speculate that genetic (inherited) factors may be a factor.

Other dyslexia symptoms and signs

  • Delays in Early Language Development
  • Difficulty Copying
  • Difficulty Distinguishing Left From Right
  • Difficulty Learning to Recognize Letters and Words
  • Difficulty Spelling
  • Difficulty with Vocabulary Words
  • Problems Remembering Content
  • Problems With Reading


The abbreviated term ADHD denotes the condition commonly known as: See Answer

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Jameson, J. Larry, et al. Harrison's Principles of Internal Medicine, 20th Ed. New York: McGraw-Hill Education, 2018.