My son had not "pooped"in almost 3 weeks (well one worth while anyway) and it was getting bad. I took him to the doctor a couple of times and they finally said "give him an enema." I was not looking forward to this but I had to do it, plus the poor little guy could not even sit in his highchair anymore so something had to be done. I tried extra fruit, juice, and even prunes and nothing would help. We were worried that there was a blockage but thankfully there wasn't, he just needed some help.