My daughter, 8 years old, almost everytime has problem with pass motion. She always has constipation since she was 6 months old (since she had combining food and breast milk). An USG had been done and found nothing. She loves to eat veggie and fruits as well. But she often forget to drink much water. A peditrician was giving her a therapy with laxative syrup. Sometimes it helps, the other time not. For some times, if she really had bad constipation, she was having fever or even vomit, after 3-5 days had no pass motion. For note, she is a picky eater, but she always feel hungry at about 9-10 pm. And i would like to tell too that both me and my husband also having problem with constipation. But I need to tell that I have auto immune NMO, I take Imuran everyday and i dont like to eat veggies or fruits, but i do drink much water daily. I need your advance re my daughter condition. Thanks.
Constipation should be treated. One important thing is to understand that constipation in child Chat Doctor.  The treatment is toilet training and an anti constipating agent like polyethylene glycol 3350(PEGGED 3350). This is in powder form and should be taken for at least 1 to 2 months depending on the response. Further, changes in diet like adding fibers eating adequate amount of water will also help to relieve constipation.