1, the calf triceps (calf belly) is too tight, pulling the heel bone and increasing the tension of the metatarsal tendon membrane (very common); 2, gait, changes in walking posture and body imbalance (see if the body is correct, shoulders and head and neck have tilt, etc.), resulting in increased tension of the metatarsal tendon membrane; 3, the foot muscle strength decreases and cannot maintain the normal posture of the foot, causing abnormal stress on the metatarsal tendon membrane; 4, foot deformity Most common, heel bone skew (abnormal wear on the outside of the heel), footpad (abnormal frictional thickening of the local skin), bunion (big toe), hammertoe (bent and deformed toes, flat foot or high arch foot, etc.; calf bending such as rotundity may also lead to heel pain. 5, overwork without shoes to protect the arch; 6, daily shoes do not meet the physiological requirements; 7, obesity; 8, pregnancy Weight gain, hormonal changes affect the metatarsal tendon membrane; 9, sudden increase in physical activity or change in lifestyle, or running and jumping cause damage to the metatarsal tendon membrane; 10, long-term standing work.