Pain in the tendon above the heel may be caused by Achilles tendonitis, soft tissue injury, calcium deficiency and so on. 1. Achilles tendonitis: Achilles tendonitis refers to aseptic inflammatory lesions of the Achilles tendon and the surrounding tendon membrane, which can cause pain in the heel and above, and can be accompanied by subcutaneous tissue congestion, edema, and activity limitation. 2. Soft tissue injury: after strenuous exercise or prolonged activity, it can lead to strain, strain and rupture of the Achilles tendon and above soft tissue, resulting in pain in the heel and above tendon, accompanied by swelling, bruising and activity limitation of the corresponding parts. 3. Calcium deficiency: when the patient’s serum calcium is deficient, it can lead to increased neuromuscular excitability, causing muscle and other soft tissue spasms, resulting in pain in the tendon above the heel. Pain in the tendon above the heel can also be caused by other reasons. It is recommended to improve CT, hematology and other auxiliary tests under the guidance of the doctor to make a clear diagnosis and then carry out the corresponding treatment.