Children get up in the morning ankle pain may be excessive exercise, acute upper respiratory tract infection, synovitis and other factors. 1. Excessive exercise: children in the daytime for a long time to carry out activities, may lead to the ankle joint parts of excessive fatigue, will wake up in the morning ankle pain, mainly manifested as soreness, the symptoms are not too serious, after a reasonable rest can be improved on their own. 2. Acute upper respiratory tract infection: at night when sleeping, the indoor temperature is low, may lead to cold, causing generalized pain, will get up in the morning ankle pain, can be improved through hot compresses, massage and other physiotherapy. 3. synovitis: small children with synovitis in the ankle joint area, in the morning when you wake up the symptoms of pain, excessive activity, the symptoms of pain can be significantly aggravated. Children get up in the morning ankle pain, and the pain is more serious, accompanied by other abnormal manifestations, it is recommended to consult a doctor for examination and treatment.