(Disclaimer: This article is for general use only. To protect patient privacy, the following information has been processed) Abstract: The Achilles tendon is commonly known as the “hamstring”. When the intensity of exercise is too high, the calf muscles repeatedly pull on the Achilles tendon, which can damage the tendon and form a sterile inflammation, also known as Achilles tendonitis. In addition, the sudden increase in exercise intensity can also easily cause acute Achilles tendonitis. The patient in this article came to the clinic with pain in the right heel, and was diagnosed with an acute attack of chronic Achilles tendonitis through the patient’s medical history and interview. The patient was diagnosed with chronic Achilles tendonitis in the acute phase through the patient’s history and face-to-face consultation. Initial consultation The patient came to the clinic with right heel pain for 3 months. The patient was in good physical condition, but could only be supported by his family to enter the consultation room. Detailed medical history revealed that the patient loved sports, especially badminton, and basically went to the court every day to exercise. In the last 3 months, heel pain started to appear, and the patient thought it was a sports strain and could get better after a few days of rest, so he did not pay attention to it and did not carry out relevant treatment. The pain was never relieved, especially in the morning when he got up. Until one day ago, when he landed on the ground during a “snap”, the pain became more severe, so he decided to come to the hospital for consultation. After careful observation of the patient’s heel, it was obvious that the Achilles tendon was swollen, the Achilles tendon pattern was invisible, a small amount of bruising appeared on the surrounding skin, and the Achilles tendon was painful on local pressure. Although the patient was able to stand on tiptoe, there was significant pain at the Achilles tendon after exertion. The patient was finally diagnosed as having an acute attack of chronic Achilles tendonitis. According to the patient’s medical history and examination, the diagnosis was clear. It was suggested that the patient should first rest in bed, minimize the activity of the Achilles tendon, apply ice to the swollen and painful area of the Achilles tendon to relieve the symptoms, and put the heel of the shoe up when getting out of bed to allow the toe to be stressed. After the symptoms are relieved for 2-3 days, systemic treatment can be carried out. The ankle joint can be fixed with elastic tape, which can put pressure on the ankle joint and help to reduce the local swelling. Combined with physical therapy such as extracorporeal shock wave, the pain can be suppressed. Auxiliary treatment with non-steroidal anti-inflammatory drug ibuprofen or closed treatment. It is also recommended to stop badminton sports. Finally, rehabilitation exercises are needed, such as moving the ankles and wrists, slow walking, etc., to promote metabolism and enhance the recovery of limb movement function. Treatment effect Through 1 month of physical therapy, medication and rehabilitation exercises, the patient’s Achilles tendon swelling and pain were significantly relieved, but there was still discomfort at the Achilles tendon when running and jumping or tiptoeing during rehabilitation exercises. After 3 months of outpatient review, the patient had mild pain at the Achilles tendon when pressing, but no pain when walking, basically returned to normal walking, and the quality of life was significantly improved compared with before. The patient loves badminton, and there are a lot of running and jumping movements during this sport, which is a severe test for the Achilles tendon itself, and if the warm-up before the sport is not enough, or the venue is too hard, it is more likely to lead to Achilles tendon injury. The patient is 52 years old, her body is no longer young, and it is difficult to repair the Achilles tendon injury, which will lead to chronic Achilles tendonitis over time. Therefore, I suggested that the patient should try to avoid this kind of sports in the future, which is most beneficial for recovery. Happily, the patient’s therapeutic effect is ideal after treatment. Patients can choose aerobic exercises such as walking, jogging, swimming and brisk walking for their regular physical exercise, which can reduce the damage to the Achilles tendon. In addition, in the diet need to avoid spicy, stimulating food, more food containing high calcium, high protein, high vitamin. Five, personal insight improper exercise is an important cause of Achilles tendonitis, such as not fully warmed up before exercise, exercise shoes do not fit, the venue is too hard or long-term overload exercise, may lead to the occurrence of this disease, these in our lives will often appear, if the symptoms, or should go to the hospital as soon as possible to check, the best can do early diagnosis, active treatment. Generally the Achilles tendon takes a long time to heal, and the pain symptoms last 3-6 months before they disappear. If Achilles tendonitis is not given attention and is not treated reasonably, the Achilles tendon injury will further aggravate and can be complicated by Achilles tendon rupture in severe cases.