The Achilles tendon is a fibrous connective tissue located at the back of the lower leg, below and above the heel bone. The main role is to contract through the rear muscles of the calf, after conduction to the heel can play a role in lifting the heel, walking, jumping, running and the role of the Achilles tendon is inseparable. The characteristics of Achilles tendonitis are as follows: 1. Onset characteristics: common in athletes who jump and run more action. Especially the use of pedometers, walking 30,000, 40,000, 50,000 steps a day people are prone to Achilles tendon injury resulting in Achilles tendonitis; 2, symptom characteristics: acute local Achilles tendon parts redness, swelling, pain, tension, tension, chronic period caused by long-term recurrent pain in the Achilles tendon parts, once excessive exercise, excessive exertion after the pain attack or aggravation, especially in jumping, running pain aggravated. It is difficult to do the movement. Once this happens, it should be treated promptly, with braking, less exercise, and timely treatment at the hospital.