Delayed Hand Dominance
The short answer
Hand dominance - a consistent preference for using one hand over the other - typically becomes clearly established between ages 2 and 4, though it can take until age 5 or 6 in some children. It is completely normal for toddlers under 2 to switch hands frequently. Using both hands equally at this age does not mean anything is wrong and actually shows good bilateral coordination.
Parents everywhere have the same worry. You are doing the right thing by looking into it.
By Age
What to expect by age
6-12 months
Babies at this age use both hands freely and should not show a strong hand preference. They reach with whichever hand is closer to the object and transfer items between hands easily. A very strong preference for one hand before 12 months can actually be a concern, as it may indicate weakness or neurological differences on the non-preferred side. Babies should be using both hands actively at this age.
1-2 years
Toddlers begin to show a slight preference for one hand for certain tasks, but they still switch hands frequently. You may notice your toddler prefers one hand for eating and the other for stacking blocks, or they may switch back and forth within the same activity. This is all normal and expected. There is no need to encourage or direct hand preference at this age.
2-3 years
Hand preference becomes more consistent during this period, though some children still switch hands. Most children will show a clear preference for one hand during activities like drawing, throwing, and eating by around age 3. If your child is still switching hands frequently at this age, it is usually not a concern as long as they are developing fine motor skills appropriately with both hands.
3-5 years
Hand dominance should be clearly established by age 4 to 5 for most children. If your child is over 4 and still has no consistent hand preference, and this seems to be accompanied by difficulty with fine motor tasks like drawing, cutting, or buttoning, an occupational therapy evaluation may help. Some children are naturally more ambidextrous, and as long as they can complete fine motor tasks effectively, there may be no concern.
What Should You Do?
When to take action
- Your child is under 2 years old and uses both hands equally, switching between them freely.
- Your toddler shows a preference for one hand during some activities but switches for others.
- Your child is between 2 and 4 years old and gradually showing an emerging hand preference, even if it is not fully consistent yet.
- Your child seems to be ambidextrous but can complete fine motor tasks well with either hand.
- Your child is over 4 years old and has no hand preference at all, and this seems to be making fine motor tasks like drawing or cutting more difficult.
- Your child seems to avoid using one hand entirely, which may indicate weakness on that side rather than true hand preference delay.
- Your child had a clear hand preference and has lost it, or has started showing weakness in their dominant hand.
- Your baby under 12 months shows a very strong preference for one hand and avoids using the other hand at all, as early hand dominance can indicate weakness or a neurological issue on the non-preferred side.
- Your child has sudden weakness or loss of function in one hand after previously using both hands well.
Sources
Related Resources
Trust your instincts. If something feels wrong, reach out to your pediatrician.
Worrying about your baby means you care. That is a good thing.
Related Physical Concerns
My Baby Seems to Use One Side More Than the Other
Babies should use both sides of their body fairly equally during the first 18 months of life. While slight preferences can be normal, a consistent pattern of favoring one side - using one arm much more than the other, crawling with one leg dragging, or turning the head predominantly one way - should always be discussed with your pediatrician. Early identification of asymmetry leads to the best outcomes.
My Baby Only Army Crawls
Army crawling (also called commando crawling) is a completely valid and normal way for babies to move. Many babies army crawl for weeks or even months before transitioning to hands-and-knees crawling, and some skip hands-and-knees crawling entirely. What matters is that your baby is independently mobile and exploring their environment.
One Side of My Baby's Body Moves Differently
Babies should generally use both sides of their body equally. If one side consistently moves differently, is weaker, stiffer, or less coordinated, this warrants evaluation. Asymmetric movement can indicate hemiplegia (cerebral palsy affecting one side), brachial plexus injury, or other neurological conditions that benefit from early therapy.
My Baby Crawls Unevenly
While some variation in crawling patterns is normal, consistently favoring one side or dragging one limb while crawling warrants attention. Babies should use both arms and both legs relatively equally when crawling. Persistent asymmetry could indicate muscle tone differences, hip issues, or neurological concerns that benefit from early evaluation.
My Baby Still Has the Fencing Reflex (Persistent ATNR)
The asymmetric tonic neck reflex (ATNR, also called the fencing reflex) causes your baby to extend the arm on the side they are looking toward. It should integrate between 4-6 months. If the ATNR persists strongly beyond 6 months, it can interfere with bringing hands to midline, bilateral hand use, and rolling. Evaluation is recommended.
Signs of Ataxia in Babies and Toddlers
Ataxia refers to wobbly, uncoordinated movements that result from problems with the cerebellum (the brain's coordination center). Signs include an unsteady, wide-based gait, difficulty with precise hand movements, and intention tremor (shaking that worsens when reaching for something). If you notice these signs, evaluation by a pediatric neurologist is important.