Cavus Foot – Causes and Characteristics

A cavus foot is characterized by an unusually pronounced longitudinal arch. As a result, the middle area of the sole of the foot barely touches the ground, or not at all, when standing and walking. Not every cavus foot causes discomfort. However, in more severe cases, pressure points, pain, or problems with shoe fit can arise.

What is a cavus foot?

In a cavus foot, medically known as pes cavus or pes excavatus, the longitudinal arch of the foot is significantly higher than usual. A pronounced instep is therefore also typical. In contrast to a flatfoot or pes planus, the arch of the foot does not flatten sufficiently under load.

As a result, the load is distributed more heavily on the heel and forefoot. Depending on the severity, the natural rolling motion of the foot can also change.

What can cause a cavus foot?

A cavus foot can be congenital or familial. In addition, there are acquired forms that can occur in connection with diseases of the nerves or muscles, among other things. In some people, no clear cause can be determined.

If a significant cavus arch develops anew in adulthood or if the foot shape progressively changes, the cause should be professionally investigated.

What characteristics and symptoms are typical?

A high instep and a strongly pronounced longitudinal arch are the most striking features of a cavus foot. Discomfort is not necessarily associated with it.

However, in more severe cases, pain in the forefoot or heel, pressure points, and calluses can occur, among other things. An increased tendency to sprain an ankle or changes in toe alignment are also possible.

Why do pressure points often occur with a cavus foot?

Since a smaller part of the sole of the foot touches the ground in a cavus foot, the load is concentrated more heavily on individual areas. Especially the heel and ball of the foot can thus be subjected to greater stress. Additionally, a high instep can cause pressure on the top of the foot in the shoe.

Therefore, the length of a shoe alone is not decisive. The space in the forefoot and over the instep should also match the individual foot shape.

What should you look for in shoes for a cavus foot?

Shoes for a cavus foot should give the foot sufficient room without losing the necessary support at the heel or midfoot. Ample space over the high instep is particularly important to avoid pressure points there as much as possible.

Comfortable cushioning can enhance wearing comfort on the more heavily loaded areas. Soft, adaptable upper materials can also help to avoid localized pressure. However, the suitable fit always depends on the individual foot. The [shoe widths explained] provide initial guidance – but with a high instep, the volume of the shoe also plays an important role in addition to the width.

Those who wear individually adapted insoles should also ensure sufficient space in the shoe. A [removable footbed] can be practical here, as the existing footbed can be exchanged for a custom insole depending on the model.

When choosing, it is therefore worthwhile to pay less attention to a specific shoe category and more to the actual fit. Further information can be found under [Finding the right shoe].

In case of persistent pain, recurrent ankle sprains, or significant changes in foot shape, an orthopedic or medical evaluation is advisable.