Achilles tendon soreness of the calf may be related to physiological or pathological factors, such as cold, Achilles tendon strain, Achilles tendon strain, etc. 1. Physiological factors: prolonged exposure of the calf to cold stimuli will affect the local blood circulation, resulting in poor local blood circulation, which will also produce Achilles tendon soreness. 2. Pathological factors (1) Achilles tendon strain: a chronic injury caused by long time standing or walking and running, resulting in muscle injury without timely treatment, thus causing Achilles tendon pain. Muscle weakness, localized pressure and pain may also occur. (2) Achilles tendon strain: commonly seen in jumping rope, basketball jumping and sprinting, used for excessive force or improper posture, resulting in mild Achilles tendon strain can cause Achilles tendon pain. The Achilles tendon is slightly swollen and painful when pressed, and walking activities are slightly affected. When the Achilles tendon pain in the calf, it is recommended to consult a doctor in time, follow the doctor’s instructions for further examination, and choose a reasonable treatment plan under the doctor’s comprehensive analysis.