Most of the time, a baby who hasn’t pooped in a few days isn’t actually constipated. But when your baby is straining, fussy, and clearly uncomfortable, there are several safe ways to help move things along, depending on your baby’s age and what they’re eating.
What’s Normal (and What’s Not)
Before trying to fix the problem, it helps to know whether there actually is one. Normal pooping frequency in babies covers a surprisingly wide range: anywhere from several times a day to once every five to seven days. Breastfed babies tend to poop more often than formula-fed babies, and younger babies poop more often than older ones. A breastfed baby who goes five or six days without a bowel movement but is eating well, gaining weight, and not in obvious discomfort is likely fine.
True constipation isn’t about frequency alone. The key signs are hard, pellet-like stools, visible straining that lasts more than a few minutes, a firm or bloated belly, and fussiness during or just before a bowel movement. If the poop itself is soft when it finally comes, your baby probably wasn’t constipated, even if the gap between poops felt long to you.
Tummy Massage and Leg Movements
For babies of any age, gentle physical techniques can stimulate the digestive tract. Lay your baby on their back and slowly bicycle their legs, bringing each knee toward the belly in a pedaling motion. You can also massage the lower abdomen in a clockwise direction (following the path of the intestines) using gentle, firm pressure with two or three fingertips. A warm bath can relax the muscles around the belly and sometimes triggers a bowel movement on its own. These techniques work best when your baby is calm and awake, not right after a feeding.
Juice for Younger Babies
If your baby is under four months old, dietary options are limited since they’re only drinking milk. One approach recommended by Children’s Hospital of Philadelphia: mix one ounce of prune, apple, or pear juice with one ounce of water, and offer it once or twice a day. The sugars in these juices draw extra water into the intestines, which softens the stool. This is a short-term fix, not an everyday drink. If it doesn’t help after a day or two, it’s worth calling your pediatrician rather than increasing the amount.
For babies between four and six months, the same juice-and-water approach applies. Once babies are over six months, you can also start offering small sips of plain water (about four to eight ounces per day) in a cup, which adds fluid to the diet and helps keep stool soft.
High-Fiber Foods for Babies on Solids
Once your baby is eating solid foods (typically around six months), you have more tools. The “P fruits” are a parent favorite for a reason: pureed prunes, pears, and peaches all contain fiber and sorbitol, a natural sugar alcohol that acts as a mild laxative. Prunes are the most potent of the three.
Beyond the P fruits, good high-fiber options include pureed peas, broccoli, carrots, berries, and apples (with the skin blended in). Offer these as part of regular meals rather than as a one-time intervention. If your baby’s constipation started around the same time you introduced solids, look at what you’ve been feeding. Rice cereal, bananas, and large amounts of dairy like cheese or yogurt can all be binding. Swapping rice cereal for oat or barley cereal sometimes makes a noticeable difference.
What About Formula?
If your formula-fed baby is constipated, the first thing to check is that you’re mixing the formula correctly. Too little water (making the formula more concentrated than intended) can contribute to harder stools. Double-check the ratio on the can.
You might be tempted to switch to a low-iron formula, since iron has a reputation for causing constipation. That reputation is outdated. Iron-fortified formula does not cause constipation, and iron is critical for your baby’s development, so don’t drop it. If you’re considering switching formula brands or types, talk to your pediatrician first. Random formula changes can introduce new digestive issues without solving the original one.
Glycerin Suppositories
Glycerin suppositories are a more direct option when dietary changes aren’t working. They draw water into the rectum and typically produce a bowel movement within 15 minutes to an hour. For children under two, you should get a doctor’s guidance before using one. For kids two and older, the standard approach is one suppository per day, inserted into the rectum and held in place for about 15 minutes.
These are meant for occasional use only, not as a regular habit. Don’t use them for more than a week straight without medical advice. If your baby has rectal bleeding or doesn’t have a bowel movement after using one, stop and call your pediatrician. Some babies experience mild rectal discomfort or a burning sensation, which is normal but worth knowing about ahead of time.
You may also hear about using a rectal thermometer with a dab of petroleum jelly to stimulate a bowel movement. This can work in a pinch, but it’s easy to rely on too often, and repeated rectal stimulation can make your baby dependent on it to go. It’s a last resort, not a first step.
Signs That Need Medical Attention
Most infant constipation is functional, meaning nothing is structurally wrong. But certain signs point to something more serious. Blood in the stool, vomiting (especially if it looks green or yellow), a significantly bloated abdomen, fever alongside constipation, or failure to gain weight all warrant a prompt call to your pediatrician.
For newborns specifically, a baby who didn’t pass their first stool (meconium) within 48 hours of birth, or who consistently produces very thin, ribbon-like stools, may need evaluation for a condition called Hirschsprung’s disease, where the nerves in part of the colon don’t develop properly. This is rare but important to catch early. If your baby’s constipation started right from birth and has never really resolved, bring it up at your next visit rather than continuing to manage it at home.