What Is Dyslexia

This page reflects our understanding of mental health topics as of 2026. If you are reading this at a later date, some details may no longer be current, so please verify anything important against up to date sources. If you notice anything that needs updating, we would welcome you letting us know.

Dyslexia is a common, lifelong learning difference that mainly affects accurate and fluent word reading and spelling. It usually stems from difficulty with phonological processing, which is the ability to notice and work with the individual sounds in words and connect them to letters. People with dyslexia often read slowly, guess at words, and find spelling especially hard, even though they may understand spoken language well and have strong reasoning skills. Dyslexia is not caused by low intelligence, poor vision, laziness, or lack of motivation. It often runs in families. With early identification and structured, explicit reading instruction, people with dyslexia can make strong progress.

Signs of Dyslexia

Preschool and Kindergarten

• Difficulty learning letter names and sounds
• Trouble recognizing rhymes or clapping syllables
• A family history of reading difficulties

School Age

• Slow, effortful reading with frequent errors
• Guessing words from the first letter or pictures
• Difficulty sounding out unfamiliar words
• Spelling the same word differently on one page
• Avoiding reading aloud or reading for pleasure
• Strong spoken vocabulary compared with reading and writing

Teens and Adults

• Reading slowly and needing to reread
• Avoiding reading-heavy tasks
• Difficulty with spelling and written expression
• Fatigue after reading
• Difficulty learning another language

The page about why a child may struggle to read even though they are bright explores this pattern.

Why It Happens

Brain imaging research shows that people with dyslexia process written language differently, particularly in left-hemisphere networks that link sounds and letters. Genetics play a strong role, and dyslexia often runs in families. It exists across languages, though it can look different depending on how a language is written.

Dyslexia and Strengths

Many people with dyslexia have strengths in areas such as reasoning, problem-solving, creativity, spoken communication, and seeing the big picture. Some research and many personal accounts suggest that people with dyslexia may approach problems in different ways, though strengths vary from person to person and are not guaranteed. Recognizing strengths matters because children with dyslexia often spend much of their school day working on what is hardest for them. Making space for activities where they shine, such as art, building, sports, debate, or science, helps protect self-esteem and motivation. Adults with dyslexia often find careers that play to their strengths while using tools to reduce the impact of reading and spelling difficulties.

What It Is Not

Dyslexia is not seeing letters backward. Reversals are common in all young children learning to read. It is not a vision problem, though vision should be checked to rule out other issues. It is not a sign of low intelligence, and many people with dyslexia have significant strengths in reasoning, creativity, or verbal thinking. It is also not something children simply grow out of, although skills improve greatly with the right teaching.

How It Is Diagnosed

Dyslexia is diagnosed through a psychoeducational assessment, which looks at phonological skills, word reading, reading fluency, spelling, comprehension, cognitive abilities, and history. In clinical terms, dyslexia is described as a specific learning disorder with impairment in reading, as explained on the page about what a specific learning disorder is. Assessment can happen at any age, including in adulthood, as described on the page about learning disabilities in adults.

What Helps

• Structured literacy instruction. Explicit, systematic teaching of sounds, letters, and word patterns has the strongest evidence, as described on the page about structured literacy.
• Early help. Intervention works at any age, but earlier support can prevent gaps from widening.
• Accommodations. Extra time, audiobooks, text-to-speech, and speech-to-text tools reduce barriers.
• Protecting confidence. Children with dyslexia often feel discouraged. Celebrating strengths and effort matters.

In BC, a diagnosis can support school planning, as described on the page about school supports in BC after a psychoeducational assessment.

Getting Support at Pacific Maple Psych Centre

If reading has always felt harder than it should for you or your child, an assessment can provide answers and a clear plan.