Hi, I don't know what the blood could be from, but I do know a great way to ease constipation. My 6 month old has been having constipation problems, and her pedi said to give her WHITE Karo syrup. (apple juice and baby prune juice didn't work)I took her in because I was concerned. I heared that sometimes it can be a sign of a hernia, especially is your baby has an 'outie.' But he said she was fine and her stomach didn't even feel hard and she hadn't gone in a week before I took her in. So now I mix Karo in her water, or in her cereal, and she goes either in a few hours or no later than the next morning. Works like a charm. He also said to give her Glycerin suppositories,but I refuse to stick anything in her,because I wouldn't want to stick anything in me like that. (I know I'm silly) He also said that some babies bowel habits just change normally by new foods. He also said it was safe to give a couple teaspoons up to 3 times a day. But I only do it in the mornings with her ceareal or her water. And now she has regular bowel movements, and she doesn't strain and its not even hard. Hope this was helpful. I would love to know how it turned out for you.