Children’s foot pain in the middle of the night may be caused by physiological factors, calcium deficiency, chronic strain and other factors. 1. Physiological factors: too much exercise during the day, resulting in the accumulation of lactic acid metabolites, in the evening when you go to bed, there will be symptoms of pain in the palms of the feet, manifested as soreness, most of them can be improved on their own, do not need to carry out special treatment. 2. Calcium deficiency: children eat for a long time in favor of picky eaters, resulting in excessive lack of calcium in the body, may appear at night the phenomenon of foot cramps, which can cause pain in the soles of the feet. 3. Chronic strain: children’s feet for a long time cold or suffered an injury, may lead to the palms of the foot parts of the fascia and other soft tissues of the chronic strain, in the night time when the feet are cold, will make the injury aggravated, will cause pain in the soles of the feet. Children’s foot pain in the middle of the night, there may also be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.