My Toddler Can't Navigate Stairs
Medically reviewed by Dr. Sarah Chen, MD, FAAP · Board-Certified Pediatrician
Content reviewed against published AAP, CDC, NIH guidelines
Last reviewed:
Your baby's physical development is unique, and concerns about my toddler can't navigate stairs, here is what you need to know.
The short answer
Stair climbing develops in stages: crawling up stairs typically starts around 12-15 months, walking up with a hand held by 18-24 months, and walking up holding the rail by 2-3 years. Going down stairs is harder and develops later. Many toddlers need help with stairs well past their second birthday.
Key takeaways
- Stair climbing develops in stages: crawling up stairs typically starts around 12-15 months, walking up with a hand held by 18-24 months, and walking up holding the rail by 2-3 years. Going down stairs is harder and develops later. Many toddlers need help with stairs well past their second birthday.
- Usually normal when: Your toddler is under 2 and needs help with stairs or prefers crawling up.
- Call your doctor if: Your child was climbing stairs and has lost this ability.
- Varies by age — see the age-by-age breakdown below
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What Parents Should Know
According to AAP, CDC, NIH guidelines, stair climbing develops in stages: crawling up stairs typically starts around 12-15 months, walking up with a hand held by 18-24 months, and walking up holding the rail by 2-3 years. Going down stairs is harder and develops later. Many toddlers need help with stairs well past their second birthday. At 12-18 months, most toddlers start climbing up stairs by crawling on hands and knees at this age. Coming down is much harder and may involve scooting down on their bottom. If your toddler shows no interest in stairs yet, they may simply need more opportunity or they may be cautious. Not climbing stairs at this age is very common. It is generally considered normal when your toddler is under 2 and needs help with stairs or prefers crawling up. However, you should contact your pediatrician promptly if your child was climbing stairs and has lost this ability.
Normal vs. Concerning
By Age
What to expect by age
12-18 months
Most toddlers start climbing up stairs by crawling on hands and knees at this age. Coming down is much harder and may involve scooting down on their bottom. If your toddler shows no interest in stairs yet, they may simply need more opportunity or they may be cautious. Not climbing stairs at this age is very common.
18-24 months
Toddlers typically learn to walk up stairs while holding a hand or railing, placing both feet on each step before moving to the next. Going down stairs remains challenging. Some toddlers are fearful of stairs, which is actually a healthy sign of appropriate caution. Gradual exposure with support helps build confidence.
2-3 years
By age 2-3, most children can walk up stairs with one hand on the rail, stepping with both feet on each step. Alternating feet on stairs does not typically develop until age 3-4. If your child cannot walk up stairs with support by age 2.5, mention it to your pediatrician.
3-4 years
By age 3-4, children typically alternate feet going up stairs and may still use both feet per step going down. If your child cannot navigate stairs at all by age 3, evaluation for leg strength, balance, and coordination is recommended.
What to Tell Your Pediatrician
- Describe when you first noticed my toddler can't navigate stairs and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your child is over 2.5 years and cannot walk up stairs even with hand support.
- Mention if your child seems to have significant weakness or difficulty lifting their legs to step up.
- Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
- Bring a list of any questions or observations you want to discuss at the appointment.
What Should You Do?
When to take action
- Your toddler is under 2 and needs help with stairs or prefers crawling up.
- Your toddler goes up stairs but cannot come down independently.
- Your toddler places both feet on each step rather than alternating.
- Your toddler is cautious about stairs but willing to try with help.
- Your child is over 2.5 years and cannot walk up stairs even with hand support.
- Your child seems to have significant weakness or difficulty lifting their legs to step up.
- Your child has suddenly become unable to do stairs they previously managed.
- Your child was climbing stairs and has lost this ability.
- Your child has leg weakness, pain, or refuses to bear weight on their legs.
What You Can Do at Home
- Keep track of when you notice my toddler can't navigate stairs — noting the time of day, duration, and any triggers can help your pediatrician.
- Remember that your toddler is under 2 and needs help with stairs or prefers crawling up — this is generally within the range of normal.
- At 12-18 months, focus on observation rather than intervention unless your pediatrician advises otherwise.
- Provide plenty of supervised floor time and tummy time to support your baby's physical development.
- While monitoring at home, seek immediate care if your child was climbing stairs and has lost this ability.
Related Conditions
My Toddler Can't Jump with Both Feet
Jumping with both feet off the ground is a milestone that typically develops between 24 and 30 months. Many toddlers cannot jump until closer to their third birthday. Jumping requires significant leg strength, balance, and coordination, so it is one of the later gross motor milestones to develop.
Low Muscle Tone (Hypotonia)
Low muscle tone means your baby's muscles feel less firm or their body feels "floppy" when you hold them. While it can sometimes indicate an underlying condition, many babies with mildly low tone do very well with support and strengthening activities.
My Toddler Seems Very Clumsy
Clumsiness is extremely common and normal in toddlers. Their brains are still developing the neural pathways for coordination, spatial awareness, and balance. Most toddlers appear clumsy compared to older children. However, if clumsiness is persistent, severe, or worsening after age 3, it may be worth evaluating for developmental coordination disorder.
Related Resources
Milestone Checklists by Age
Track your baby's developmental milestones from birth to 5 years with age-specific checklists.
Month-by-Month Development
Detailed monthly development guides from birth through 24 months.
When to Call the Doctor
General guide on when to call the pediatrician, visit urgent care, or go to the ER.
Frequently asked questions
Is my toddler can't navigate stairs normal?
When should I call the doctor about my toddler can't navigate stairs?
When is my toddler can't navigate stairs normal?
What causes my toddler can't navigate stairs?
What should I mention to my pediatrician about my toddler can't navigate stairs?
Is my toddler can't navigate stairs normal at 12-18 months?
Is my toddler can't navigate stairs normal at 18-24 months?
Should I go to the ER for my toddler can't navigate stairs?
Does my toddler can't navigate stairs go away on its own?
References
Doctor Visit Checklist
Bring this checklist to your next pediatrician visit to discuss My Toddler Can't Navigate Stairs.
Things to mention
- Describe when you first noticed my toddler can't navigate stairs and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your child is over 2.5 years and cannot walk up stairs even with hand support.
- Mention if your child seems to have significant weakness or difficulty lifting their legs to step up.
- Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
- Bring a list of any questions or observations you want to discuss at the appointment.
Observations to share
- Your child is over 2.5 years and cannot walk up stairs even with hand support.
- Your child seems to have significant weakness or difficulty lifting their legs to step up.
- Your child has suddenly become unable to do stairs they previously managed.
Urgent signs to report immediately
- Your child was climbing stairs and has lost this ability.
- Your child has leg weakness, pain, or refuses to bear weight on their legs.
My notes
From ismybabyalright.com — free, evidence-based baby health guides
All content follows our editorial policy and is reviewed against published clinical guidelines.
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Related Resources
Bottom line
Most cases of my toddler can't navigate stairs are normal. Talk to your pediatrician if your child was climbing stairs and has lost this ability.
Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.
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Related Physical Concerns
My Toddler Can't Jump with Both Feet
Jumping with both feet off the ground is a milestone that typically develops between 24 and 30 months. Many toddlers cannot jump until closer to their third birthday. Jumping requires significant leg strength, balance, and coordination, so it is one of the later gross motor milestones to develop.
Low Muscle Tone (Hypotonia)
Low muscle tone means your baby's muscles feel less firm or their body feels "floppy" when you hold them. While it can sometimes indicate an underlying condition, many babies with mildly low tone do very well with support and strengthening activities.
My Toddler Seems Very Clumsy
Clumsiness is extremely common and normal in toddlers. Their brains are still developing the neural pathways for coordination, spatial awareness, and balance. Most toddlers appear clumsy compared to older children. However, if clumsiness is persistent, severe, or worsening after age 3, it may be worth evaluating for developmental coordination disorder.
Should I Use Adjusted Age for My Preemie's Milestones?
Yes — for premature babies, developmental milestones should be assessed using adjusted (corrected) age, not chronological age, until at least 2 years of age. Adjusted age is calculated by subtracting the number of weeks your baby was born early from their actual age. For example, a 6-month-old born 2 months early would have an adjusted age of 4 months, and should be assessed against 4-month milestones. Most pediatricians use adjusted age for developmental assessment through age 2-3, and for growth charts through age 2.
Baby-Proofing a Small Apartment
Baby-proofing a small apartment is absolutely possible and focuses on the same key safety principles as any home: securing furniture to walls, covering outlets, locking cabinets with hazardous materials, and ensuring safe sleep spaces. Small spaces actually have an advantage - there is less area to monitor. Focus on eliminating the most dangerous hazards first: falls, poisoning, choking, and burns.
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.