Achilles tendinitis happens when you get an inflamed Achilles tendon due to too much strain being put on it. Your Achilles tendon connects your heel bone to your calf muscles and is located at the back of your lower leg. It is large and can hold a lot of force, however, it still can get injured.

Risk Factors

Athletes who are conditioned poorly are more likely to develop Achilles tendinitis. Engaging in activities that involve repetitive jumping and sudden starts and stops increase your risk of getting this condition. If you change your activity level suddenly, wear inappropriate footwear, or train on poor surfaces, you also increase your risk.


Achilles tendinitis happens when your tendon that connects your heel to the back of your leg becomes painful and swollen close to the bottom of your foot. This tendon, called the Achilles tendon, enables you to push your foot down when you walk, run, or perform other movements.. You use this tendon during activities, such as jumping and running.

Participating in high impact, strenuous exercise, like running, is a common cause of Achilles tendinitis. If you ignore this condition, it can result in you rupturing or tearing your tendon. If you rupture or tear this tendon, it is crucial that you seek treatment immediately.

Symptoms of Achilles Tendinitis

Pain in your tendon that gradually builds up over time is a common symptom of Achilles tendinitis. The pain you experience with this condition often starts off mild (feels more like an ache) above your heel or in the back of your leg after a sports activity, like running. More serious pain can occur after prolonged sprinting, running, or stair climbing.