Home > Baby Helpline > Baby Poop Questions > 5 Reasons For Blood in a Baby’s Poop and What The Blood Color Will Tell You
This post may contain affiliate links. Please read my disclosure policy for information.

5 Reasons For Blood in a Baby’s Poop and What The Blood Color Will Tell You

blood in baby poop

Mom’s Question:
My baby has a lot of blood in his poop. We have been to the doctors but they didn’t really say what it was! I also don’t know what to do about it, since I didn’t get any instructions.

Help, I am very worried!!!!!!

Jade (Ipswich)

Baby Helpline:

Possible Reasons For Blood Baby’s Poop

I certainly understand that you are worried. Good of you to take your baby to the doctor. Since you were sent home, I assume the doctor ruled out any severe illness.

Here are a number reasons to why a baby may have blood in their poop:

  • Most often blood in a baby’s stools is not an emergency. They may have it from constipation and anal tear from passing the hard stools.
  • There are also reports of infants with blood in the poop from food allergies and intolerances; cow’s milk and soy protein being the most common. Even breastfed babies can experience this if their mom consumes a lot of the protein that they are allergic to. In such case, it will help if mom eliminates the cow’s milk or soy from her diet.
  • You don’t mention the age of you baby and if you breastfeed or not. If you do breastfeed, oversupply can actually also cause some blood in stools. This is due to the lactose in the foremilk, which can irritate the bowels.
  • Other reasons are different types of infections. For example, some bacteria, such as E.coli, Salmonella or Shigella may cause blood and also mucus in a baby’s poop. But is these cases, the baby is likely to have other symptoms of illness too, such as diarrhea, maybe fever, vomiting or other symptoms.
  • There is also a condition called intussusception, which is uncommon but can occur in babies and toddlers. What happens is that one portion of the bowel slides into the next and causes a blockage, intense pain and sometimes bowel movements consisting of blood and mucus mainly. This is an emergency condition, but not something your baby is likely to have because you do not mention intense pain!

Unless you are completely sure that the blood is related to constipation or a small tearing that you can see, you should find another doctor, who can help you sort out the problem. I can’t say why your baby has blood in his poo, but I sure know I wouldn’t settle with “no help” from the doctors.

The Color Of the Blood In a Baby’s Poop

Another thing, the color of the blood and poop matters:

  • If the blood in the poop is bright red, it is fresh and hence likely to be due to an anal tear from constipation. It can, however also be due to milk protein allergy – if you discover normal poop (not hard, like in constipation) tinged with bright red blood. Finally, diarrhea with bright red blood indicates a bacterial infection. Except for a case of constipation that you know how to treat, you should pay a visit to your baby’s doctor to sort out the cause of the blood.
  • If the blood is dark, it is due to something further into your baby’s belly. Most likely, if the blood shows up as small blackish poppy seeds, your baby has swallowed some blood from your own bleeding, cracked nipples while breastfeeding. On the other hand, if your baby’s poop is more or less all black and tarry, it may be almost all blood and in this case, you should take your baby to a doctor immediately.
  • Dark or bright-red jelly-like poopshould definitely be discussed with a doctor immediately. In these cases, there may be infections, intussusception or other reasons that need a doctor’s attention.

Also, if your baby has a lot of blood in the stools or if it is combined with other illness or pain, then a doctor should be consulted.

If you know that the blood is related to constipation, you can find tips on remedies here. (But in any case, I think you should still find a better pediatrician to talk to!)

I would also like to recommend good books related to a baby’s health in general and pooping in particular! The first one is Caring for Your Baby and Young Child: Birth to Age 5 by American Academy Of Pediatrics and the second one is Baby Poop: What Your Pediatrician May Not Tell You … about Colic, Reflux, Constipation, Green Stools, Food Allergies, and Your Child’s Immune Health.

Good luck and remember – parents always know best if something is not right with their children!

Paula

More On Blood In A Baby’s Diaper

]/checklist] Find comments to this question below.

Comments for “Baby Has Blood in Poop”

Jun 06, 2013

Milk protein intolerance
by: Anonymous

My baby had the same thing and it turns out that she has a milk protein intolerance. I breastfeed her exclusively so I had to stop eating all diary products including anything that has whey or casein in it. Some babies can’t process the larger cow’s milk protein so it makes them really sick. Our baby used to scream and scream when pooping. This happened especially at night and then she started having blood at about 6 weeks so I was very concerned. We scheduled an appointment with a pediatric G.I. specialist just in case that wasn’t the problem, but after about a month of me going off dairy our baby was significantly better. The blood went away after about a week of no dairy.

Definitely, find a doctor that can help you find out what is causing the blood, though. It is serious. We had to change doctors also.


We changed to a new commenting system. Add your comments below or return to
Baby Poop Q&A.

  FREE Baby Safety Checklist - Subscribe here!
x