Most of the time, a baby who hasn’t pooped in a few days doesn’t need intervention at all. Infant bowel patterns vary enormously, and what looks like a problem is often completely normal. That said, when your baby is genuinely uncomfortable, there are several safe, effective techniques to get things moving.
What’s Actually Normal
Before trying to fix anything, it helps to know what “normal” looks like, because it’s a much wider range than most parents expect. Breastfed babies tend to poop more than formula-fed babies, and younger babies poop more than older ones. In the first three months, breastfed infants can have anywhere from 5 to 40 bowel movements per week. Formula-fed babies in that same window typically have 5 to 28. By 6 to 12 months, 5 to 28 per week is the general range regardless of feeding method.
Here’s the number that surprises most parents: going 5 to 7 days without a bowel movement isn’t necessarily a problem, as long as your baby proved they could poop normally in the first couple of weeks of life and is eating and growing well. This is especially common in breastfed babies around 6 weeks old, when their digestive system matures and becomes more efficient at absorbing breast milk, leaving less waste behind.
The key distinction is between infrequent pooping and actual constipation. Constipation isn’t really about frequency. It’s about difficulty. A baby who poops every three days and produces soft stool without straining is fine. A baby who poops daily but passes hard, pellet-like stools with obvious discomfort may actually be constipated.
Signs Your Baby Is Actually Constipated
True infant constipation shows up as hard, dry, or pellet-shaped stools that are clearly difficult to pass. Your baby may arch their back, cry during bowel movements, or turn red in the face with prolonged straining. Some babies will clench their legs and gluteal muscles, which actually pushes stool higher into the rectum and makes the problem worse.
Look for these specific signs:
- Hard, ball-shaped stools rather than soft, seedy, or pasty ones
- Visible distress during bowel movements (not just grunting, which is normal for newborns learning to coordinate their muscles)
- A firm, distended belly that seems uncomfortable to the touch
- Refusing to eat in combination with not stooling
Blood in the stool always warrants a call to your pediatrician. So does constipation in a newborn under a few weeks old, bilious (green) vomiting, fever alongside not stooling, or failure to gain weight.
Belly Massage and Movement
Physical techniques are the safest first step and often the most effective for mild cases. Abdominal massage helps move gas and stool through the intestines toward the bowels. Place your baby on their back on a flat surface. Using gentle but firm pressure with two or three fingertips, stroke the belly in a clockwise direction, starting from the lower right side (where the large intestine begins) and moving across to the lower left (where the colon leads to the rectum). This follows the natural path of digestion.
Bicycle legs are another reliable technique. Hold your baby’s ankles and gently move their legs in a cycling motion. This compresses the abdomen rhythmically and can help release trapped gas and stimulate the bowel. You can combine this with the belly massage, alternating between the two for a few minutes at a time. A warm bath before or during these exercises can help relax the abdominal muscles and make everything more effective.
Juice for Babies on Solids
For babies older than 6 months who are eating solid foods, small amounts of specific fruit juices can soften stool naturally. Prune, pear, and apple juice contain sorbitol and other carbohydrates that draw water into the intestines, increasing both the frequency and water content of stools. Offer up to 1 ounce (30 mL) of undiluted, 100% juice between feedings, up to a maximum of 4 ounces (125 mL) in 24 hours.
The AAP generally recommends against juice before 12 months, but makes an exception when it’s clinically indicated for constipation in babies over 6 months. If you do offer juice at this age, use a cup rather than a bottle.
Once your baby is eating purees, the “P fruits” are your allies: prunes, pears, peaches, and plums all have a natural laxative effect. Pureed prunes are particularly potent. On the flip side, bananas, rice cereal, and applesauce (as opposed to apple juice) tend to be binding and can make constipation worse.
What About Formula and Solids?
If your formula-fed baby becomes constipated, you may wonder whether the iron in formula is the culprit. It’s not. The amount of iron in standard infant formula does not cause or worsen constipation. Iron is essential for your baby’s growth, and switching to a low-iron formula is almost never recommended. That said, if your baby takes a separate iron supplement (like a vitamin drop), that can sometimes contribute to harder stools.
Starting solid foods commonly changes stool consistency. Stools become firmer and may have a stronger odor. This transition period is when many parents first notice constipation. If your baby’s stools become uncomfortably hard after starting solids, increasing high-fiber foods like pureed peas, sweet potatoes, and the P fruits mentioned above can help. Make sure your baby is also getting enough breast milk or formula alongside solids, since that liquid intake matters for keeping stool soft.
Water: When It’s Safe and When It’s Not
Babies under 6 months should not drink water. Their kidneys aren’t mature enough to handle it, and water displaces the breast milk or formula they need for nutrition. Giving water to a young infant can dilute sodium levels in the bloodstream, causing a dangerous condition sometimes called water intoxication. For babies under 6 months, breast milk or formula provides all the hydration they need.
After 6 months, small sips of water between meals are safe and can help keep stools softer, especially once your baby starts eating solids. A few ounces throughout the day is plenty at this stage.
Rectal Stimulation and Suppositories
If massage, movement, and dietary changes haven’t worked, some parents try gentle rectal stimulation. This involves inserting the tip of a lubricated rectal thermometer or cotton swab just slightly into the rectum and making a small circular motion. This can trigger the rectal muscles to contract and produce a bowel movement. It works, but it shouldn’t become a regular habit because you don’t want your baby’s bowels to become dependent on external stimulation.
Glycerin suppositories are available over the counter, but for children under 2, you should check with your pediatrician before using them. The standard pediatric dose (for ages 2 to 6) is one suppository inserted into the rectum and held in place for about 15 minutes. They shouldn’t be used for longer than one week without medical guidance, and you should stop using them if your baby has rectal bleeding or no bowel movement after use.
When the Problem Keeps Coming Back
Occasional constipation during transitions (starting solids, switching formulas, minor illnesses) is common and usually resolves with the techniques above. But constipation that persists for two or more weeks, or that keeps recurring, is worth discussing with your pediatrician. In rare cases, chronic constipation in infancy can signal an underlying condition, particularly if your baby had delayed passage of their first stool (more than 48 hours after birth), produces unusually thin stools, or isn’t gaining weight appropriately. For the vast majority of babies, though, constipation is a temporary mechanical problem with a simple fix.