<s>[INST] my 4 month old baby is always screaming in pain when he has a bowel movement, he goes every day, sometimes a few times a day, they are soft stools, often very soft and runny, he also spends the whole day in pain trying to go. I have just started weaning him, this has made no difference, its as though he is constantly constipated without actually being constipated? [/INST] Yes, your child is constipated, and the loose motions you see sometimes is due to the Fermentation of the stool by his bowel bacteria .child Chat Doctor.  Breastfed babies rarely can have this problem, so I recommend you to try shifting the milk towards breast milk and cut down the cows milk .the use of lactulose 2.5 ml twice daily is very helpful to loosen his stool, you can decrease the dose when you feel he is passing a lot of stools. I hope this helps </s>