Bow-leg walking: what it can mean

Some young children have symmetrical bowing as their legs develop. In older children and adults, new, worsening or uneven bowing deserves assessment, particularly when it changes balance, comfort or walking endurance.

Bow legs, also called genu varum, leave a gap between the knees when the ankles are together. During walking, the feet may point inward or outward, the body may sway, or one shoe may wear differently. Appearance alone does not show the cause or severity.

A clinician compares both legs and looks at the hips, knees, ankles and feet. They may observe standing, walking and squatting, then check joint movement, limb alignment and muscle control. Age, previous injury and the pattern of change help guide the assessment.

Notice whether the curve is equal on both sides and whether walking causes pain, limping, tripping or fatigue. A short video of natural walking and a record of when changes began can help at an appointment. Do not force the knees straight or use braces without a professional assessment.

Management depends on the underlying reason. Observation may be appropriate for a developing child, while targeted exercise can address strength, balance or movement habits. Structural deformity that is substantial or progressing may need an orthopaedic opinion; surgery is considered selectively rather than from appearance alone.

Book a routine assessment if bowing is increasing, mainly affects one leg, persists beyond the expected developmental stage, or is accompanied by recurrent knee, hip, ankle or foot discomfort. Prompt care is appropriate after an injury or when the person cannot bear weight.

Seek urgent medical help for severe pain, marked swelling, a visibly deformed leg after trauma, fever with a hot swollen joint, new weakness, or a foot that becomes pale, blue, cold or numb.

Ask whether the alignment fits the person's age, whether both legs measure similarly, and which examination findings explain the gait. Clarify whether monitoring, imaging, footwear advice or Paediatric Physiotherapy is appropriate, and what specific change should trigger follow-up.