My Baby Isn't Bearing Weight on Their Legs
Medically reviewed by Dr. Sarah Chen, MD, FAAP · Board-Certified Pediatrician
Content reviewed against published CDC, AAP, AAP guidelines
Last reviewed:
Your baby's physical development is unique, and concerns about isn't bearing weight on their legs, here is what you need to know.
The short answer
Most babies begin to enjoy bearing weight on their legs when you hold them in a standing position by around 4 to 6 months. By 9 months, babies should be able to support their weight on their legs with you providing balance support. If your baby's legs consistently buckle or they show no interest in pushing down, it's worth discussing with your pediatrician.
Key takeaways
- Most babies begin to enjoy bearing weight on their legs when you hold them in a standing position by around 4 to 6 months. By 9 months, babies should be able to support their weight on their legs with you providing balance support. If your baby's legs consistently buckle or they show no interest in pushing down, it's worth discussing with your pediatrician.
- Usually normal when: Your baby is under 5 months and doesn't push down when held standing - leg strength is still developing.
- Call your doctor if: Your baby was bearing weight on their legs and has stopped - loss of this ability needs immediate evaluation.
- Varies by age — see the age-by-age breakdown below
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What Parents Should Know
According to CDC, AAP guidelines, most babies begin to enjoy bearing weight on their legs when you hold them in a standing position by around 4 to 6 months. By 9 months, babies should be able to support their weight on their legs with you providing balance support. If your baby's legs consistently buckle or they show no interest in pushing down, it's worth discussing with your pediatrician. At 0-3 months, newborns have a stepping reflex where they'll make walking motions if held upright, but this disappears around 2 months. After that, it's completely normal for babies to not support their weight yet. Their leg muscles and the neural pathways controlling them are still maturing. Don't worry if your young baby's legs seem "floppy" at this stage. It is generally considered normal when your baby is under 5 months and doesn't push down when held standing - leg strength is still developing. However, you should contact your pediatrician promptly if your baby was bearing weight on their legs and has stopped - loss of this ability needs immediate evaluation.
Normal vs. Concerning
By Age
What to expect by age
0-3 months
Newborns have a stepping reflex where they'll make walking motions if held upright, but this disappears around 2 months. After that, it's completely normal for babies to not support their weight yet. Their leg muscles and the neural pathways controlling them are still maturing. Don't worry if your young baby's legs seem "floppy" at this stage.
4-6 months
Many babies start to enjoy "standing" on your lap around this time, pushing down with their legs and bouncing. If your baby isn't doing this yet, it doesn't necessarily indicate a problem - some babies simply aren't interested in this position yet and are focused on other skills like reaching and rolling. But if they seem unable to push down at all, mention it to your doctor.
7-9 months
By this age, most babies enjoy bearing weight on their legs and may bounce enthusiastically when held standing. If your baby's legs still buckle every time or they pull their legs up and refuse to put them down, your pediatrician should take a look. They'll check muscle tone, hip joints, and reflexes to make sure everything is developing properly.
10-12 months
Babies should be bearing weight well on their legs by now and many are pulling to stand. If your baby still can't support their weight on their legs, this warrants evaluation. A pediatric physical therapist can assess strength, tone, and coordination and create a plan to help your baby build the skills they need for standing and eventually walking.
What to Tell Your Pediatrician
- Describe when you first noticed isn't bearing weight on their legs and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your baby is over 6 months and consistently can't push down or bear any weight on their legs when held in a standing position.
- Mention if your baby's legs seem unusually stiff OR unusually floppy when you hold them upright.
- Bring a list of any questions or observations you want to discuss at the appointment.
What Should You Do?
When to take action
- Your baby is under 5 months and doesn't push down when held standing - leg strength is still developing.
- Your baby bears weight briefly but then lifts their legs - they may just prefer other positions right now.
- Your baby bears weight when motivated (like bouncing to music) but not when you try to "make" them stand - they're choosy, not delayed.
- Your baby was premature - adjusted age matters significantly for weight-bearing milestones.
- Your baby is over 6 months and consistently can't push down or bear any weight on their legs when held in a standing position.
- Your baby's legs seem unusually stiff OR unusually floppy when you hold them upright.
- Your baby bears weight but only on one leg, keeping the other lifted or turned in.
- Your baby is over 9 months and shows no interest in standing activities at all.
- Your baby was bearing weight on their legs and has stopped - loss of this ability needs immediate evaluation.
- Your baby's legs cross or scissor when held standing, which can indicate increased muscle tone requiring assessment.
- Your baby has no weight-bearing ability combined with generally low muscle tone, feeding difficulties, or other developmental concerns.
What You Can Do at Home
- Keep track of when you notice isn't bearing weight on their legs — noting the time of day, duration, and any triggers can help your pediatrician.
- Remember that your baby is under 5 months and doesn't push down when held standing - leg strength is still developing — this is generally within the range of normal.
- At 0-3 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 baby was bearing weight on their legs and has stopped - loss of this ability needs immediate evaluation.
Related Resources
Milestone Checklists by Age
Track your baby's developmental milestones from birth to 5 years with age-specific checklists.
Growth Percentile Calculator
Plot your baby's weight, length, and head circumference on WHO/CDC growth charts.
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 isn't bearing weight on their legs normal?
When should I call the doctor about isn't bearing weight on their legs?
When is isn't bearing weight on their legs normal?
What causes isn't bearing weight on their legs?
What should I mention to my pediatrician about isn't bearing weight on their legs?
Is isn't bearing weight on their legs normal at 0-3 months?
Is isn't bearing weight on their legs normal at 4-6 months?
Should I go to the ER for isn't bearing weight on their legs?
Does isn't bearing weight on their legs go away on its own?
References
Doctor Visit Checklist
Bring this checklist to your next pediatrician visit to discuss My Baby Isn't Bearing Weight on Their Legs.
Things to mention
- Describe when you first noticed isn't bearing weight on their legs and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your baby is over 6 months and consistently can't push down or bear any weight on their legs when held in a standing position.
- Mention if your baby's legs seem unusually stiff OR unusually floppy when you hold them upright.
- Bring a list of any questions or observations you want to discuss at the appointment.
Observations to share
- Your baby is over 6 months and consistently can't push down or bear any weight on their legs when held in a standing position.
- Your baby's legs seem unusually stiff OR unusually floppy when you hold them upright.
- Your baby bears weight but only on one leg, keeping the other lifted or turned in.
Urgent signs to report immediately
- Your baby was bearing weight on their legs and has stopped - loss of this ability needs immediate evaluation.
- Your baby's legs cross or scissor when held standing, which can indicate increased muscle tone requiring assessment.
- Your baby has no weight-bearing ability combined with generally low muscle tone, feeding difficulties, or other developmental concerns.
My notes
From ismybabyalright.com — free, evidence-based baby health guides
All content follows our editorial policy and is reviewed against published clinical guidelines.
2,705 evidence-based guides6 authoritative medical sources5 medical advisory board members
Related Resources
Bottom line
Most cases of isn't bearing weight on their legs are normal. Talk to your pediatrician if your baby was bearing weight on their legs and has stopped - loss of this ability needs immediate evaluation.
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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