Achilles tendonitis is an overuse injury in the back of your lower leg. The achilles tendon is a strong cord of tissue that connects the muscles in the back of your calf to your heel bone. It helps you do things like walk, run, jump, stand on your toes, and climb stairs.
Achilles tendonitis is a painful condition that inflames the tendons around the muscles and bones in your lower leg. It’s caused by repetitive or intense strain on the achilles tendon. Runners who suddenly increase their workout, and middle-aged people who only play sports on the weekend, are most likely to get Achilles tendonitis.
Achilles tendinitis can lead to a more serious achilles tendon rupture.