hello expert. my 4year baby is getting pain while pooping and tight also.....she is drinking plenty of water but there is no use.....what to do

A. thank you for reaching out to us in this question it's probably something that is eating which is causing constipation should try and maintain a food journal that will give you an Idea he may be drinking a lot of water but include more roughage and his diet like fruits and vegetables at least two servings of each every single day