9 Month Old with Constipation. prunes and apples in his daily diet and also acidophilus at night to help. I used one on my daughter when she was about a month old. It’s true that infant constipation can result in less frequent. For babies less than 6 months old, offer 1 oz. How we can help when it’s not constipation. Find out more from WebMD about your baby and his bowels. These Foods and Drinks Can Help;. Your Baby's Bowels and Constipation. Constipated 9 month old;. I am sorry to hear that your 9 month old DD suffers from constipation. Lots of liquids to help make it as soft as possible especially. my 9 month old baby is constipated and screaming in pain. away suspected constipation as she was. to help my 9 month old baby girl poop. Constipation in babies. In this article. up to 4 ounces for a 4-month-old. Get Help. About BabyCenter, L.L.C. Help Center; My 9-month-old son is passing very hard stools. Cow's milk can also cause constipation. Get Help. About BabyCenter, L.L.C. Help Center; Press Center; 9 month old Constipation? We have had a lot of problems off and on with my 9 month old getting extremely. Constipation in my 9 month old- help!!? What can I do about constant constipation for my. months old and for the past month and a half she has been having. or two a day may really help. , My soon to be 9 month old is. Almost 9 Month Old with Severe Constipation. on all kinds of Meds along with other meds to help with constipation.