Swelling of the Achilles tendon is caused by two main factors: First, a strain or tear of the Achilles tendon, which can lead to the rupture of small local blood vessels and bleeding, and may increase with activity. Local bruising, swelling and edema at the site of the injury will gradually increase, resulting in significant swelling of the Achilles tendon. In this case, external plaster fixation or surgical incision to close the severed end should be taken to cure the problem. Second, the Achilles tendon location appeared chronic sterile inflammatory lesions, such as this place has strain after not sufficient rest, activities too early, resulting in the formation of local chronic lesions, after exertion and cold easily lead to poor local blood circulation, the inflammatory exudate gradually increased, accumulation, will also be formed in the local obvious swelling situation. In this case, the Achilles tendon should be relaxed and rested, avoiding further activities, and the foot should be elevated above the level of the heart to reduce the local swelling by gravity.