At the ankle joint, the talus (ankle bone), tibia and fibula - together they form a very stable mortise and tenon structure. The talus is connected to the calcaneus, so the ankle joint allows the foot to easily bend up and down.
Five tarsal bones fit together and form a strong structure, allowing the foot to have a stable control. Tarsal bones are connected to the metatarsals, making the structure much more stable. The phalanges are connected to the metatarsals, allowing the foot to have proper walking ability.
The following factors often cause foot joint pains: bad bone structure, overweight, unfit shoes, or excessive sports. In addition, the foot joint is also prone to arthritis pains.