My nephew is 3 years old, when he was 3 weeks old he was diagnosed with Hertzsprung disease. He had to have a colostamy bag for 19 months. The rest of the time since he has gotten the bag of his stools havent been exactly "solid" more kind of like mush. He has been potty trained for the last year and for the last month or so he has been going to the bathroom in his pants before he can get to the bathroom fast enough. Im not sure if it is uncontrollable or what exactly is going on with him. Any advice as to what this could be or what direction I should be taking with doctors would be greatly appreciated.