The biggest causes of flat feet are genetics and trauma.
Genetics are the most common cause of flat feet. This means that you were born with flat feet, and there is nothing much you can do to change that.
Trauma can come from a variety of sources,
including over-training, poor footwear, and poor alignment.
A few other associated causes of losing those arches include the following:
Posterior tibial tendon dysfunction
An injury to the posterior tibial tendon is one of the most common causes of calf and ankle pain.
The posterior tibial tendon runs parallel to the outside of the calf and connects the calf muscle to the heel bone.
When the posterior tibial tendon is injured, the calf muscle becomes weak.
This can cause the foot to collapse, or the leg to buckle inwards when the foot is weight-bearing.
Tight Achilles Tendon
This condition leads to a premature heel lift once you are walking or running.
Posterior tibial tendon dysfunction is a type of flat foot that occurs in adulthood.
This condition occurs when the tendon that connects the calf muscle to the inside of the ankle is injured, swollen, or torn.