The Achilles tendon is the area above the back of the heel, the Achilles tendon, is one of the thickest tendinous structures in the body. The Achilles tendon is a very thick, strong and taut tendon between the heel and the calf. The Achilles tendon is about 15cm long and is the thickest tendon in the human body, formed by the fusion of the tendons of the triceps (flounder muscle, gastrocnemius internal and external head) in the upper part of the heel at about 15cm. People’s walking, running and jumping depend on this powerful tendon. If the Achilles tendon is short, you may have a small running stride or even walk with unsteady feet. If the Achilles tendon is completely ruptured, it is difficult to walk. In the clinic Achilles tendonitis is very common, generally like running, climbing and other loaded sports people will occur Achilles tendonitis, if there is a local skin break, there will be bacteria survival, mostly low toxicity bacteria, causing adverse effects. Care should be taken to avoid repeated hormonal closure therapy to prevent spontaneous rupture of the Achilles tendon.