The heel bone is the largest tarsal bone and is the main component of the heel we often refer to as the heel bone. The heel bone is divided into the anterior part of the heel bone, the body of the heel bone, the mound of the heel bone, the talonavicular process and the tuberosity of the heel bone. The tuberosity of the heel bone is mainly located in the area of the lower posterior base of the heel, which is the tuberosity of the heel bone. It is composed mainly of dense bone, unlike other parts of the heel bone, which are composed of cancellous bone. This part is composed of dense bone, mainly to bear weight and impact resistance, and the surface of the heel tuberosity is rough, it is attached to the top of the Achilles tendon, the Achilles tendon is the thickest tendon in the body. The anterior part of the heel tuberosity, the sole of the foot, is the starting point of the metatarsal tendon membrane, so the heel tuberosity is a very important part. Related diseases are plantar tendinitis and heel fractures. Since the heel tuberosity is made of dense bone and is relatively strong, a fracture of the heel bone can be repositioned by traction of the bone block in the heel tuberosity.