This is a comparison guide, not a diagnosis
Nothing here can diagnose dyslexia — only a qualified educational psychologist or specialist assessor can do that. This guide exists to help you tell whether a professional opinion is worth seeking, based on the pattern of difficulty rather than speed alone.
"My child reads so slowly" is one of the most common worries parents bring up — and one of the hardest to interpret on its own, because reading speed varies hugely among completely typical children. What actually separates a slow-but-typical reader from a dyslexic profile isn't speed itself, it's a specific set of patterns underneath it.

Why speed alone is a poor signal
Reading speed is affected by dozens of things that have nothing to do with dyslexia — temperament, how cautious or careful a child naturally is, how much reading practice they've had, even how tired they are that day. A methodical, careful child who checks every word can be genuinely slow and completely typical. What matters far more than speed is whether the underlying pattern of errors and progress looks different.
The pattern comparison
| Slow-but-typical reader | Worth a professional look |
|---|---|
| Reads accurately, just takes longer to get there | Frequent inaccuracy, not just slowness — wrong sounds, not just slow ones |
| Speed steadily improves with regular practice | Speed and accuracy stay flat despite weeks of consistent, well-targeted practice |
| Rhyming and sound games were easy earlier on | Persistent difficulty with rhyming or breaking words into sounds, well past when peers picked it up |
| Occasional b/d mix-ups before age 7 | B/d or p/q confusion that persists strongly past age 7-8 |
| Confident with spoken language, just careful in reading | Strong spoken vocabulary but a much harder time getting those same ideas into decoded text |
| No close family history of reading difficulty | A parent or sibling with dyslexia or a diagnosed reading difficulty |
Why the distinction matters more than the label
The point of this comparison isn't to sort children into two boxes — plenty of children sit somewhere in between, and a formal profile can only come from proper testing anyway. What the distinction actually gives you is a sense of what to try next: a slow-but-typical pattern usually responds well to more of the same good practice, while a more dyslexic-leaning pattern tends to need a different, more structured and intensive kind of instruction to make the same progress. Neither pattern is a life sentence on reading — both respond well to the right kind of support, just different amounts and types of it.
What to do with this comparison
- Look at the pattern, not one bad reading session. A single rough evening tells you almost nothing — look for a consistent pattern across several weeks.
- Check that practice is actually well-targeted first. Our phonics isn't working guide covers pacing and consistency issues that mimic a deeper difficulty but aren't one.
- Talk to the teacher if the right-hand column fits better. They see your child's progress against a wide baseline of peers and can flag whether screening makes sense.
- Ask for a referral if concerns continue. Only a full assessment by an educational psychologist or specialist reading assessor can give an actual diagnosis.
For the fuller cluster of dyslexia-related signs beyond this comparison, see our signs of dyslexia guide, and for timing guidance on assessment specifically, our when to get your child tested guide. Either way, our guide for struggling readers has approaches that help broadly.