Early Signs of Rett Syndrome in Young Children

Many babies with Rett syndrome seem to develop typically at first — which is exactly why a gentle, watchful eye in the early months matters so much.

In short

Rett syndrome often begins with a quiet, healthy-seeming start, followed by a slowing or stalling of development between about 6 and 18 months. The most telling early signs are a loss of skills a baby once had — especially purposeful hand use — together with repetitive hand movements and slowing head growth. These signs deserve a prompt developmental check; only a clinician can confirm what they mean.

Early signs to notice

A change after an early settled start

• Slowing of development, or a plateau, after months of seemingly typical progress
• Loss of skills the baby had — reaching, grasping, babbling or social engagement

Hand use and movement

• Losing purposeful hand use — no longer holding toys or reaching as before
• Repetitive hand movements once purposeful use fades — wringing, washing-like, mouthing or clapping motions
• Reduced muscle tone (a "floppy" feel) or unsteady, wobbly movements

Growth and engagement

• Head growth slowing relative to the body over the early months
• Reduced eye contact or social interest, sometimes mistaken for autism early on
• Feeding difficulties, irritability, or disturbed sleep

When to seek a check

Any loss of skills a child once had — at any age — is always a reason to seek a developmental review promptly, rather than waiting. Because Rett syndrome involves regression, early review matters even when a baby seemed perfectly well before. Ask your paediatrician for a developmental assessment, and begin supportive occupational therapy input in parallel while answers are sought.

The Pinnacle way

At Pinnacle Blooms Network we map each child's strengths across every developmental domain to build a clear, supportive baseline. A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care — never from an online list. Backed by 25 million+ therapy sessions and 4.95 lakh+ families served across 70+ centres, our team walks beside you at every step.

Trusted sources

Informed by WHO ICD-11 (LD90.0 Rett syndrome), and developmental-surveillance guidance from the CDC, the American Academy of Pediatrics and NICE.

Next step — if your child has lost a skill or you notice these patterns, book a developmental check with Pinnacle on WhatsApp: +91 91001 81181.

This is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.