<prompt> If you are a doctor, please answer the medical questions based on the patients description.My 3 grandson has very painful bowel movements constipation since he was 7 mos. old that have caused his parents to take him to the emergency room where they could find nothing abnormal though all they did was take xrays. The docs just tell them it s normal, have him drink prune juice, etc to no avail. This sounds very serious to me as I ve seen the pain he goes through and have cried myself watching him. What should be our next step in helping this poor little guy?  <response>: Hi, Constipation is common in young child Chat Doctor. It may be due to:1 Inadequate improper toilet training in toddlers2 Predominant milk based and no fiber diet3 Stool withholding maneuvers due to fear of getting pain while passing hard stools4 Sometimes hypothyroidism low thyroid hormone levels and rarely surgical conditions such has Hirschsprungs disease may also cause constipation. As the stools get stagnant in the bowel, they get harder and child 