Pes cavus is a cavus deformity of the foot due to a fixed plantar flexion of the foot. There is a high arched foot - it is the opposite of flat feet.
It is much less common than flat feet and the cause may be neurological, orthopedic or neuromuscular.
Can be painful unlike most flat feet because of metatarsal compression.
People with pes cavus have trouble finding shoes that fit and may require support in their shoes.
Surgical treatment is only indicated if there is severe pain as the operations available may be difficult.