Achilles tendinitis
![Illustration showing Achilles tendinitis](http://www.mayoclinic.org/~/media/kcms/gbs/patient%20consumer/images/2013/08/26/10/59/ds00737_im03054_r7_achillestendinitisthu_jpg.jpg)
Achilles tendinitis is an overuse injury of the Achilles (uh-KILL-eez) tendon, the band of tissue that connects calf muscles at the back of the lower leg to your heel bone.
Achilles tendinitis is an overuse injury of the Achilles (uh-KILL-eez) tendon, the band of tissue that connects calf muscles at the back of the lower leg to your heel bone.