|  |  |  |  | cheap hotels in MilanWhat is Calcaneal Apophysitis? Calcaneal apophysitis, or Sever's disease, is an inflammation of the growth center of the heel bone, or calcaneus. The condition is known as apophysitis, because bones, like the heel bone, that have a growth center that is not at the joint level is known as an apophysis. A growth center that is at the joint level is known as an epiphysis. Symptoms of calcaneal apophysitis are pain on the bottom and around the edges of the heel bone. |  |  |  | What causes it? Calcaneal apophysitis is only present in growing children whose growth center, or apophysis is still open. Calcaneal apophysitis is caused by trauma or injury to the growth center of the heel bone in physically active children between the ages of 9 to 14. Activities such as running, jumping, going barefoot, participating in sports such as basketball, soccer, baseball, tennis, etc. will aggravate the condition. Once the foot stops growing and the growth center is closed, the painful condition goes away. |  |  | | |