My Baby Looks Bowlegged
Medically reviewed by Dr. Sarah Chen, MD, FAAP · Board-Certified Pediatrician
Content reviewed against published AAP, AAOS, Boston Children's Hospital guidelines
Last reviewed:
Your baby's physical development is unique, and concerns about looks bowlegged, here is what you need to know.
The short answer
Almost all babies are born with bowlegs because of how they were curled up in the womb. This is completely normal and usually corrects itself by age 2-3 as your child grows and starts walking. True bowleggedness that needs treatment is rare and usually only a concern if it's severe, gets worse over time, or affects just one leg.
Key takeaways
- Almost all babies are born with bowlegs because of how they were curled up in the womb. This is completely normal and usually corrects itself by age 2-3 as your child grows and starts walking. True bowleggedness that needs treatment is rare and usually only a concern if it's severe, gets worse over time, or affects just one leg.
- Usually normal when: Your baby is under 2 years old and both legs are equally bowed.
- Call your doctor if: Sudden onset of bowlegs in a child who previously had straight legs - this is unusual and needs evaluation.
- Varies by age — see the age-by-age breakdown below
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What Parents Should Know
According to AAP, AAOS, Boston Children's Hospital guidelines, almost all babies are born with bowlegs because of how they were curled up in the womb. This is completely normal and usually corrects itself by age 2-3 as your child grows and starts walking. True bowleggedness that needs treatment is rare and usually only a concern if it's severe, gets worse over time, or affects just one leg. At 0-6 months, all babies have bowlegs at this age - it's the natural result of being curled up in a tight space for nine months. Your baby's legs will look curved outward when you hold them upright or during diaper changes. This is expected and nothing to worry about. As your baby grows and their bones develop, the legs will gradually begin to straighten. It is generally considered normal when your baby is under 2 years old and both legs are equally bowed. However, you should contact your pediatrician promptly if sudden onset of bowlegs in a child who previously had straight legs - this is unusual and needs evaluation.
Normal vs. Concerning
By Age
What to expect by age
0-6 months
All babies have bowlegs at this age - it's the natural result of being curled up in a tight space for nine months. Your baby's legs will look curved outward when you hold them upright or during diaper changes. This is expected and nothing to worry about. As your baby grows and their bones develop, the legs will gradually begin to straighten.
7-18 months
Bowlegs are still very common and normal at this age, even after your baby starts standing and walking. The weight-bearing that comes with walking actually helps the legs straighten over time. You might notice the bowing more once your baby is upright, but as long as both legs are equally bowed and your baby walks without pain or limping, this is typical development.
19 months - 3 years
Most children's legs straighten out by age 2-3. In fact, many kids go through a phase of being slightly knock-kneed (knees touch when standing) around age 3-4 before their legs finally align normally. If your toddler's bowlegs seem severe, are getting worse instead of better, or only affect one leg, mention it to your pediatrician.
3+ years
If your child is over 3 and still has pronounced bowlegs, especially if they're asymmetric (one leg more bowed than the other) or seem to be worsening, it's worth having your pediatrician evaluate them. In rare cases, persistent bowlegs can be related to conditions like rickets or Blount's disease, both of which are treatable.
What to Tell Your Pediatrician
- Describe when you first noticed looks bowlegged 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 2½ years old and still has very pronounced bowlegs.
- Mention if one leg is significantly more bowed than the other.
- 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 2 years old and both legs are equally bowed.
- The bowing is gradually improving as your child grows and becomes more active.
- Your child walks comfortably without limping, pain, or favoring one side.
- The bowlegs were present from birth and haven't gotten noticeably worse.
- Your child is over 2½ years old and still has very pronounced bowlegs.
- One leg is significantly more bowed than the other.
- The bowing seems to be getting worse as your child grows, rather than improving.
- Your child limps, complains of leg pain, or seems reluctant to walk or run.
- Sudden onset of bowlegs in a child who previously had straight legs - this is unusual and needs evaluation.
- Bowlegs accompanied by bone pain, inability to bear weight, or signs of illness (fever, fatigue, poor growth).
What You Can Do at Home
- Keep track of when you notice looks bowlegged — noting the time of day, duration, and any triggers can help your pediatrician.
- Remember that your baby is under 2 years old and both legs are equally bowed — this is generally within the range of normal.
- At 0-6 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 sudden onset of bowlegs in a child who previously had straight legs - this is unusual and needs evaluation.
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 looks bowlegged normal?
When should I call the doctor about looks bowlegged?
When is looks bowlegged normal?
What causes looks bowlegged?
What should I mention to my pediatrician about looks bowlegged?
Is looks bowlegged normal at 0-6 months?
Is looks bowlegged normal at 7-18 months?
Should I go to the ER for looks bowlegged?
Does looks bowlegged go away on its own?
References
- [1]American Academy of Pediatrics - Common Leg and Foot Problems: Bowlegs and Knock-Knees AAP
- [2]American Academy of Orthopaedic Surgeons - Bowlegs (Genu Varum) in Children AAOS
- [3]Boston Children's Hospital - Bowlegs: When to Worry Boston Children's Hospital
Doctor Visit Checklist
Bring this checklist to your next pediatrician visit to discuss My Baby Looks Bowlegged.
Things to mention
- Describe when you first noticed looks bowlegged 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 2½ years old and still has very pronounced bowlegs.
- Mention if one leg is significantly more bowed than the other.
- Bring a list of any questions or observations you want to discuss at the appointment.
Observations to share
- Your child is over 2½ years old and still has very pronounced bowlegs.
- One leg is significantly more bowed than the other.
- The bowing seems to be getting worse as your child grows, rather than improving.
Urgent signs to report immediately
- Sudden onset of bowlegs in a child who previously had straight legs - this is unusual and needs evaluation.
- Bowlegs accompanied by bone pain, inability to bear weight, or signs of illness (fever, fatigue, poor growth).
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 looks bowlegged are normal. Talk to your pediatrician if sudden onset of bowlegs in a child who previously had straight legs - this is unusual and needs 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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