Is the correct photography position of flat feet bilateral or unilateral?

The correct photography position of flat feet is bilateral.

Arch is an important structure of human foot. With the arch, the foot is elastic. It can not only absorb the impact of the foot, but also lock the middle foot joint, make the foot hard and promote human activities better. Flat foot, also known as flat foot disease, refers to a deformity in which the arch of the foot is low or disappears, and the arch collapses when standing or walking, causing foot pain. Many people with flat feet, especially children, have no symptoms and do not need treatment. Only a small number of children with flat feet may gradually change their whole body posture, and some children may be complicated with abnormal foot bone structure, such as vertical talus and tarsal bone healing. Among adult flat feet, there are more women over 50 years old. When the adult flatfoot first appeared, the arch of the foot existed under no load and disappeared after the load. At this point, because the joint activity still exists, it is called compound flat foot or flexible flat foot. If there is joint disease, the movement is limited and the deformity cannot be reduced, it is called rigid flatfoot.

Usually located in the medial plantar (pain in the medial hind foot), it is aggravated after standing or walking for a long time, and it can often be aggravated progressively. Occasionally, pain can also be located near the lateral ankle of the ankle joint. This is the result of heel valgus caused by arch collapse, and then the fibula collided with calcaneus.