Hi. Thanks for your query. Noted the history about your 4 year old daughter having dark brown stool, dry sticky and flaky; sticks to the buttocks, constipation since Oct 2013, enema did not help, 4 X-rays done - gave miralax and cut constipating foods, increased water intake. It is noted that the children up to the 4 years can have intestinal problems as there is still adjustment going on with the intestinal bacterial flora. Since the stools have changes color and has mucus in it I would advise you the following: Take her to the Gastroenterologist. Get the stool tests done and since it is stick it is possible that there is some sort of infection in the colon. Get a course of an antibiotic, metronidazole, anti-worm treatment and see that the problem may be solved Continue Miralax only if there is hard stool. Add a probiotic and as you have been doing trying to find the foods that cause normal bowel movements - needs to be continues. Make another list of foods and beverages that cause constipation and stop these strictly. No junk foods and the outside preserved food and beverages. If the medical management fails, she may need a pediatric colonoscopy for better diagnosis and treatment accordingly.