How to treat constipation in 6-year-old children

6-year-old child constipation, parents can give it to eat some coarse fiber food, promote defecation. Such as celery, banana, yogurt, honey water, pitaya, apple, corn, sweet potato, oatmeal, leek, grapefruit. Usually also appropriate exercise, more abdominal massage, but also can not sit for a long time.