Is dyslexia hereditary? What families need to know

Yes, dyslexia tends to run in families. Research puts the likelihood at around 49 percent that a child will have dyslexia if a parent has it. Genes load the dice, but they do not write the outcome: how severely a child experiences dyslexia depends heavily on the environment, especially whether they receive specialised reading instruction early.

The moment parents recognise themselves

Most parents of the children I screen did not know their child had dyslexia until the assessment. But something remarkable often happens during the parent interview. One or both parents begin describing how they felt in school when they could not read or understand as quickly as their friends, and how they hid those feelings all along.

Sometimes a parent suddenly sees a sibling differently: the one who dropped out of school in a family full of graduates. The family story rearranges itself once dyslexia has a name.

This is the hereditary thread made visible. If reading was a quiet struggle in your own childhood, that history is worth mentioning when your child is assessed. It is useful diagnostic information, not something to be embarrassed about.

Genes decide the risk, instruction decides the outcome

Inheriting a tendency towards dyslexia is not a sentence. The brain can learn to process print accurately when reading is taught in a structured, explicit, multisensory way. Two children with the same genetic risk can have very different school lives depending on how early the difficulty was spotted and how well it was addressed. That is why knowing your family history matters: it tells you to watch for the early indicators of learning difficulty and act sooner.

Genes load the dice. Early, structured teaching decides how the game actually goes.

How common is dyslexia in India?

Estimates vary widely because screening is inconsistent, but the numbers are large by any measure. The Dyslexia Association of India estimates that around 15 percent of students in Indian schools, roughly 35 million children, have dyslexia. Studies of primary school pupils report figures anywhere from 2 to 18 percent.

Awareness is slowly improving. The Delhi High Court has mandated that all government, private and public schools be equipped to support children with disabilities, including learning disabilities. And every year, Dyslexia Awareness Week runs from October 5 to 11. But in practice, many teachers and parents still lack the awareness, and children still go unidentified for years. Many of the beliefs that keep families from acting are simply myths about dyslexia.

What can teachers do to help a child with dyslexia?

• Make reading material multisensory: pair it with activity pages, colouring, and things to touch and move.
• Choose materials with plenty of repetition of words and phrases.
• Use sound-matching games to build phonological awareness.
• Give plenty of practice with drawing shapes and forming letters.
• Support the child’s hand while drawing or writing at first, then reduce the help gradually.
• Allow extra time in tests.
• Bring writing and spelling into different everyday forms: a diary entry, an email, a note.
• Keep the child engaged and included. Being left out of classroom life hurts more than the reading difficulty itself.

What can parents do at home?

• Use songs, poetry, and even dance to make language playful.
• Play word games often, and use nursery rhymes and silly rhyming games with younger children.
• Encourage reading along while listening to audiobooks.
• Make reading a daily habit, both silent and aloud.
• Welcome re-reading. Returning to a favourite book builds fluency; it is practice, not laziness.
• Celebrate accomplishments and spend relaxed, fun time together.
• Protect time for activities your child loves and is good at, to balance the effort school demands.
• Praise your child’s strengths. Do not let dyslexia become the only thing you talk about.
• Help your child understand what dyslexia is: that it is not their fault, and that you will work on it together.

More than anything else, these children need us to understand them. With patience and empathy, they make real progress, and just as importantly, they know they are being heard.

Frequently asked questions

If I have dyslexia, will my child definitely have it?

No. The risk is elevated, roughly a coin flip by some estimates, but plenty of children of dyslexic parents read without difficulty. Family history is a reason for early attention, not alarm.

Dyslexia runs in my family. When should I have my child assessed?

Do not wait for school to raise it. If you notice early signs, such as trouble with rhymes, letter sounds, or remembering names of familiar things by preschool age, an informal assessment can clarify things in an hour or two. Early support closes gaps before they widen.

Dr. V.S. Gayathri is a Certified Dyslexia Therapist, an Orton-Gillingham trained literacy specialist, and the founder of Flourishing Kids. She has delivered over 4,000 hours of one-to-one reading and spelling intervention, helping children across multiple countries build stronger literacy skills. If dyslexia runs in your family and you are watching your child closely, get in touch for a free 15-minute conversation.