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Published on: 7/15/2026

What are the common causes of a waddling gait?

A waddling gait is a distinctive walking pattern caused by weakness in the hip and pelvic muscles, which fail to stabilize the pelvis during movement. While it can occur naturally during pregnancy due to shifting weight and hormonal changes, a waddling gait may also signal underlying neuromuscular or musculoskeletal conditions, such as muscular dystrophy, hip dysplasia, or myopathy.

Because a waddling gait can point to a wide range of causes—from harmless to serious—identifying the root issue early is essential for effective treatment. Take a free, instant, online symptom check to better understand what may be causing your symptoms and confidently navigate your next steps.

Reviewed for medical accuracy: 07/15/2026

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Explanation

A waddling gait is most often caused by weakness in the muscles that help control movement in the hip area. This weakness leads to an exaggerated side-to-side movement when walking, creating the characteristic waddling pattern. During pregnancy, a waddling gait is normal as the body adapts to weight distribution changes. However, a waddling gait can also signal several medical conditions, including:

  • Muscular dystrophy, which causes progressive muscle weakness and can make walking difficult
  • Hip dysplasia, a condition where the hip joint doesn't form properly
  • Spinal cord injuries or disorders that affect muscle control
  • Osteomalacia, a condition where bones become soft and weak due to vitamin D deficiency
  • Muscle weakness caused by certain autoimmune disorders that affect muscle function
  • Weight gain which places extra weight and stress on the hip muscles

A waddling pattern often signals an underlying issue with the hip muscles. If you're experiencing this type of gait and want to better understand your symptoms, try Ubie's free AI symptom checker and consult a healthcare professional for proper diagnosis and treatment.

(References)

  • Sharma A, Sinha S, Narang A, Chouhan DK, Gupta S. Waddling Gait: A complication of valproate therapy and a thought beyond vitamin D deficiency. Sultan Qaboos Univ Med J. 2020 Feb;20(1):e104-e108. doi: 10.18295/squmj.2020.20.01.016. Epub 2020 Mar 9. PMID: 32190378; PMCID: PMC7065696.

  • Menger H, Pfingsten H, Hintze G, Köbberling J, Jörg J. Seltene Differentialdiagnose des Watschelgangs-Osteomalazie durch Vitamin-D-Mangel [A rare differential diagnosis of waddling gait--osteomalacia caused by vitamin D deficiency]. Nervenarzt. 1993 Jun;64(6):407-10. German. PMID: 8392665.

  • Ataullah AHM, De Jesus O. Gait Disturbances. 2024 Apr 20. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan–. PMID: 32809445.

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