There are several possible causes of pain in the middle of the foot: first, plantar fasciitis, plantar fasciitis patients can have pain in the middle of the foot or the whole foot, often due to strain or long distance walking leading to chronic aseptic inflammation of the plantar fascia, when the relevant examination and examination to exclude other diseases for diagnosis; second, fat pad inflammation, there is a fat pad in the bottom of the foot, when it When chronic inflammation occurs, pain in the middle of the foot can also occur, which should be diagnosed by physical examination; third, metatarsal headitis, if chronic inflammation of the metatarsal head occurs, pain in the middle of the foot can also occur, which should be diagnosed by physical examination and X-rays of the foot; fourth, fatigue fracture of the metatarsal bone, when the metatarsal bone is fatigued due to long distance walking, it can Fatigue fractures can occur when the metatarsal bones are damaged by fatigue due to long distance walking, resulting in pain in the middle of the foot, when X-rays and CT examinations of the foot should be performed for early diagnosis and treatment.