What causes 3rd toe crossover?

It is generally believed that crossover toe is a result of abnormal foot mechanics, where the ball of the foot beneath the second toe joint takes an excessive amount of weight-bearing pressure. This pressure eventually leads to weakening of the supportive ligaments and a failure of the joint to stabilize the toe, resulting in the toe crossing over.

Certain conditions or characteristics can make a person prone to experiencing excessive pressure on the ball of the foot. These most commonly include a severe bunion deformity, a second toe longer than the big toe, an arch that is structurally unstable, and a tight calf muscle.

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