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How Long Can Baby Go Without Pooping?

Medically Reviewed by Michelle Roth, BA, IBCLC
Everything you need to know about infant constipation.

Are you worried because your precious new baby hasn’t pooped in 6 whole days? Are they continually straining without any poop coming out?

As a new mom, it’s easy to become obsessive about every little thing your baby does, including dirty diapers or lack thereof. You immediately notice differences in the frequency, color, texture, and even the smell of their poop.

While bowel movements tell a lot about your baby’s health and nutrition, the frequency can vary from child to child. It also depends on their age and whether they are formula-fed or breastfed.

In this article, we discuss how long breastfed and formula-fed babies can go without pooping, signs, causes, and treatment of constipation, and when to consult your pediatrician.

How Often Should My Baby Poop?

Breastfed Babies

There is a wide range of normal for exclusively breastfed babies. Your baby could poop after every single feeding, or go days — or even a week or two — without a single poop (after 6 weeks of age).

During the first 24 hours of life, your baby’s poop is a black, tarry substance called meconium. As colostrum changes to mature milk, your baby’s stools turn from black to greenish and then yellow, seedy, and loose (1). Breastfed babies should have at least three bowel movements, the size of a US quarter, a day from the start.

As colostrum changes to mature milk, your baby’s stools turn from black to greenish and then yellow, seedy, and loose.

Colostrum is a natural laxative, so breast milk-exclusive babies poop a lot more often during the early days.

Take Note

After the first six weeks, your baby may poop much less. Exclusively breastfed babies over two to three months can easily go one or two weeks without a poopy diaper.

Breastmilk is perfect for the human body and easily absorbed so, very little “waste” needs to be excreted from your baby’s body. They get all those good nutrients from your milk to grow, leaving you with fewer poopy diapers to handle.

Formula Fed Babies

Baby formula is more difficult to digest than breastmilk. So, it is typical for formula-fed babies to have fewer bowel movements than a breastfed baby during the first few months of life. Your formula-fed newborn should be pooping around three to five times a day.

After the first six weeks, babies receiving formula typically have one bowel movement every day or every other day.

What Causes Infant Constipation?

There are a few possible reasons why your newborn may be constipated:

  • Powdered formula: Formula often causes your baby’s stools to be firm and bulky, especially if you have the wrong ratio of powder to water.
  • Dietary changes from breastmilk to formula: A simple change from breastmilk to formula can disrupt your baby’s digestive system and regularity.
  • Allergy/food intolerance: Your baby might be allergic or intolerant to the milk-protein in your breastmilk or formula.
  • Lack of fluid/dehydration: When dehydrated, babies’ bodies absorb all the fluids they ingest, creating hard, dry stools.
  • Physical abnormalities: Physical abnormalities, such as rectum position, tightness around the anus, or an obstruction in the bowel system could be the culprit of your newborn’s constipation.
  • Illness or medical condition: Although rare, underlying medical conditions, such as hypothyroidism, botulism, or Hirschsprung’s disease (a condition caused during fetal development, affecting the function of the large intestine and making stools difficult to pass), could be the reason your baby is backed up (2).

Signs of Infant Constipation

As mentioned above, the frequency of bowel movements can be all over the map and still be considered normal. Therefore, the frequency of stools is not always a good indicator of constipation in infants. Therefore, you’ll need to rely on other ways of knowing your baby is constipated. Here are eight signs your baby may be constipated (3).

  1. Crying in pain when stool passes.
  2. Grunting when trying to poop.
  3. Bloating.
  4. More spit-up than normal.
  5. Fussiness due to stomach pain.
  6. Poop that is hard and comes out like rabbit droppings.
  7. Constant straining coupled with a firm belly.
  8. Baby eating less.

Relieving Baby’s Constipation

If your baby seems unusually fussy, hasn’t pooped in a while, has a firm abdomen, and no appetite, they may be constipated and need extra help to relieve themselves. Here are some ways to get your baby’s bowels moving:

  • Bicycle legs: Place your baby on their back and move their legs in a circular motion, mimicking the motion of pedaling on a bicycle. This should relieve some belly pressure and get things moving.
  • Warm water bath or warm washcloth on baby’s belly: This will relax and help them release some of the bowel tension.
  • Try a different formula: They may be reacting to ingredients in the formula. So, try a different brand or even a different kind of formula, such as a sensitive stomach, low-lactose, or even soy.
  • Change your diet: If you are breastfeeding, your baby could be reacting to something in your diet. Try eliminating dairy from your diet to see if that helps.
  • Tummy massage: With your baby on their back, place your hands on their tummy right by the navel and gently massage in a clockwise circular motion. You may use some baby lotion or oil, such as coconut oil, while you massage for about three to five minutes.

If the tips above do not relieve your baby’s constipation, talk with your baby’s doctor about trying the following:

Take Note

Never use mineral oil, enemas, or stimulant laxatives on your baby.

When Should I Worry?

Be sure to visit your baby’s doctor as soon as possible if none of the previous tips work or if you notice any of the following:

  • Bloody or black stool.
  • Mucus in the stool.
  • White/clay-colored stool.
  • Persistent crying.
  • Fever.
  • Baby refuses to eat.
  • Signs of dehydration.
  • Baby is losing weight.
  • Bowel movements look like rabbit droppings.
  • Yellow or green spit-up or vomit.


If a baby is vomiting or spitting up bile and has a distended abdomen, get them to the emergency room as soon as possible, as these are signs of an intestinal obstruction, which can be life-threatening.

The Poop Scoop

The normal frequency of bowel movements in an infant varies from baby to baby and depends on your baby’s age and whether they are breastfed or formula-fed.


Some breastfed babies poop after every single feeding, while others can go up to a week without pooping. Formula-fed babies typically poop once a day or once every other day after the first month of life.

If your baby seems in pain, has hard, pellet-like poops, or is constantly straining without results, they may need help to get things moving. Try warm baths, tummy massages, bicycling their legs, or even giving them a bit of prune juice for some relief.

Always remember to call your baby’s doctor if nothing is working, you notice blood in the stool, signs of dehydration, or green/yellow vomit or spit-up.

However, if your baby is having fewer bowel movements but seems happy and healthy, relax and enjoy the lack of poopy diapers.

Headshot of Michelle Roth, BA, IBCLC

Medically Reviewed by

Michelle Roth, BA, IBCLC

Michelle Roth, BA, IBCLC is a writer, editor, and board-certified lactation consultant for two busy pediatric practices. She is a former La Leche League Leader, Lamaze Certified Childbirth Educator, and Certified Infant Massage Instructor.