Baby Crawling Unevenly or Dragging One Side
The short answer
While many babies have slightly imperfect crawling patterns, consistently asymmetric crawling - where one side clearly does more work than the other - deserves evaluation. It could indicate a muscle strength difference, hip issue, or neurological concern. Some asymmetry is normal as babies first learn to crawl, but a persistent pattern of dragging one leg or not using one arm should be mentioned to your pediatrician.
By Age
What to expect by age
When babies first learn to crawl, their form is often imperfect. Army crawling, belly crawling, and asymmetric patterns are common in the early learning phase. A baby may favor their dominant side initially. If your baby has just started moving, give them a few weeks to refine their crawling before worrying about asymmetry. However, if one limb is consistently not participating, mention it at your next visit.
By this age, crawling should be more coordinated with both arms and legs participating. If your baby is still consistently dragging one leg, not using one arm, or has a very lopsided crawl, your pediatrician will want to evaluate for hip dysplasia, muscle tone differences, or neurological concerns. An evaluation typically includes checking range of motion, muscle tone, and reflexes on both sides.
If your child has transitioned to walking, the crawling pattern matters less. However, if they are still primarily crawling at this age and doing so asymmetrically, or if you notice asymmetry in their walking as well (limping, dragging a foot), a more thorough evaluation is warranted. This could involve a referral to a pediatric neurologist or orthopedist.
What Should You Do?
When to take action
- Slightly imperfect crawling form when first learning to crawl
- Occasional variation in crawling pattern depending on the surface or direction
- Briefly favoring one side when tired
- Using a scoot or shuffle style that appears asymmetric but uses both legs for propulsion
- Your baby consistently does not use one arm or leg during crawling
- Asymmetric crawling persists for more than 2-3 weeks after learning to crawl
- One side of the body appears weaker or less coordinated than the other
- Asymmetric crawling is accompanied by other asymmetries like a head tilt or hand preference before 18 months
- Your baby suddenly stops using one arm or leg after previously using both (could indicate injury or acute neurological event)
- Asymmetric crawling is accompanied by new seizures, unusual eye movements, or loss of other skills
- Your baby appears to be in pain when trying to use the affected limb
Sources
Related Resources
Related Physical Concerns
Baby Hip Dysplasia (Hip Click)
Developmental dysplasia of the hip (DDH) is a condition where the hip joint does not form properly, ranging from mild looseness to complete dislocation. It occurs in about 1 in 1,000 births and is more common in firstborns, girls, breech babies, and those with a family history. When caught early, treatment with a soft brace (Pavlik harness) is highly effective.
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 Scoots Instead of Crawling
Some babies skip traditional hands-and-knees crawling entirely and scoot on their bottoms, army crawl on their bellies, or invent other creative ways to get around. As long as your baby is moving independently and exploring their environment by 12 months, the method they choose doesn't matter. Many bottom-scooters go straight to walking and never crawl at all.
My Baby Favors One Leg
Babies should use both legs roughly equally when kicking, crawling, and eventually walking. If your baby consistently favors one leg or seems to avoid using the other, it is worth having your pediatrician take a look. The cause is often something simple and treatable, like a minor hip or muscle issue, but early evaluation helps ensure the best outcome.
Baby or Toddler Body Odor - When Is It Normal?
Babies and toddlers can develop body odor from several benign causes: sour milk caught in skin folds, sweating, diaper area odor, strong-smelling foods in the diet, and certain medications or vitamins. True body odor (like adult BO from apocrine glands) should not occur before puberty. If your baby or young toddler has a persistent unusual body odor that is not explained by skin folds, diaper, or diet, it could indicate a metabolic condition, infection, or foreign body (especially in the nose or vaginal area). Unusual persistent odor warrants a doctor visit.
Baby Born with Teeth - Natal Teeth
Natal teeth (teeth present at birth) occur in about 1 in 2,000-3,000 births. In most cases, these are actual primary (baby) teeth that erupted early, not extra teeth. Most natal teeth are the lower front incisors. While natal teeth can sometimes cause breastfeeding difficulties or have a risk of becoming loose and being a choking hazard, many can be left in place and monitored. The decision to keep or remove a natal tooth depends on how firmly it is attached and whether it is causing problems.