Knock knees and bow legs: shape, growth and symptoms
How bow legs and knock knees differ, and which changes to discuss at an appointment: three illustrations with explanations.
Two different shapes
Bow legs are shown on the left: the knees are apart with the ankles close together. Knock knees are on the right: the knees are close with the ankles apart. The illustration explains the difference; it cannot measure or diagnose a deformity.
Interpreting shape alongside age
Leg alignment changes as a child grows. Age, symmetry, the pattern over time and function help establish whether the shape is a normal developmental variation.
Pain or asymmetry deserves attention
Marked asymmetry, worsening alignment, pain or limping deserves assessment. Leg shape alone is not enough to choose treatment; normal developmental variations do not need special shoes to straighten the legs.
Illustrations and general information for families. They do not replace an individual medical assessment or instructions from the treating team.
Dr Daniele Priano — Paediatric orthopaedics
Read the complete condition information →
Sources
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