Hello and welcome to HCM. Thank you for your query. First of all, I would like to ask if your daughter is still being breast-fed? If yes, mustard colored stool is normal in breast fed babies. But, if there exists other symptoms along with this mustard colored watery stool, then there is a chance of an infection or rejection of a feed. Have you initiated supplementary food or formula feed in your daughter? If yes, have you introduced a new product after which she developed these symptoms? If yes, please discontinue this particular product at the earliest. The next point would be if she is still being breast fed, it would be advisable to check on her mother. Starting with the area from where she is being fed (mother s breasts), cleaning the area regularly (without using anything strong that could damage the skin of the breasts or the areola/nipple region). A lot of bacteria can accumulate on the breasts, which can cause infections in the breast-fed child. Is her mother healthy? Mothers can transmit infection, bacteria or even any medications that they are on, to the breast fed baby. This can cause a reaction in different ways in the child, and even result in a rejection, presenting in the form of diarrhea. I would also advice a stool analysis and a stool culture for your daughter. If there is indeed some infection, these investigations should be able to find them. Another important point to keep in mind is, that if your daughter s stool is indeed infected, then you should be very careful while cleaning her up after changing her diapers (if she is still using diapers). Regular changing of her diapers is also crucial, as bacteria in urine or stool can accumulate and result in infections in diaper children. It is good, that you are keeping your child hydrated. Yes, the blood in the urine could most probably be due to catheterizing, as long as blood was not seen before or after this. Look into the possibility of a gastrointestinal infection (eg. stomach flu) more than looking into the urine, as this is more likely. I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications. I would gladly help you. Best wishes.