Cavus foot, more commonly known as high arch, is a condition where the arch of the foot is abnormally high. One or both feet can be affected, and it is estimated that 20% of the US population have Cavus foot. The majority of people are born with the condition, but it can be a symptom of underlying neurological or medical conditions, such as cerebral palsy, spina bifida and polio.

The high arch causes underpronation and increases the pressure placed on the metatarsals and calcaneus. The lack of inflexibility in the Pes cavus foot leads to an increased chance of ankle instability increasing the risk of ankle sprains, and there may be difficulties finding well-fitting shoes. Corns and/or calluses can develop from the pressure and the repeated stress on the metatarsals and calcaneus and may lead to the development of hairline fractures. As a result, there is often pain especially from walking and sporting activities. Additional conditions may develop as a result of cavus foot, such as metatarsalgia, plantar fasciitis and claw toes.


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