For a constipated 5-year-old, the most effective home remedies are increasing fiber and fluids, offering sorbitol-rich juices like prune or pear juice, and building a consistent toilet routine. If those steps aren’t enough after a few days, an over-the-counter osmotic laxative like MiraLAX is safe for children when used as directed.
Start With Fiber-Rich Foods and More Water
Most childhood constipation comes down to not enough fiber, not enough water, or both. A 5-year-old needs about 5 cups (40 ounces) of fluid per day, and many kids fall short of that. Bumping up water intake alone can soften stools enough to get things moving again.
For fiber, focus on foods your child will actually eat. Fruits with edible skins like apples, peaches, and pears are good options. So are strawberries, peas, carrots, corn, and beans. Swap white rice for brown rice and white bread for whole wheat. Popcorn, raw veggies with dip, and whole grain crackers all work as fiber-rich snacks. If your child eats cereal, look for one with at least 5 grams of fiber per serving. You can also mix dried fruits into pancakes, muffins, or oatmeal.
Introduce fiber gradually rather than all at once. A sudden jump can cause gas, bloating, and belly discomfort, which may make a reluctant child even less willing to eat these foods.
Sorbitol-Rich Juices as a Natural Softener
Prune juice, pear juice, and apple juice all contain sorbitol, a natural sugar alcohol that draws water into the intestines and softens stool. The American Academy of Pediatrics and the North American Society of Pediatric Gastroenterology both recognize these juices as helpful for childhood constipation. A small glass (4 to 6 ounces) once or twice a day is a reasonable starting point. Prune juice tends to be the most potent of the three, so start with a smaller amount and see how your child responds.
Build a Toilet Routine
Kids this age often ignore the urge to go because they’re busy playing, uncomfortable with the toilet, or anxious about having a painful bowel movement. A simple routine can break that cycle.
Have your child sit on the toilet for 5 to 10 minutes after every meal. The body’s natural digestive reflexes are strongest right after eating, so this timing works in your favor. Place a small footstool under their feet so their knees sit higher than their hips. This position straightens the pathway and makes it easier to push without straining. Praise your child for sitting and trying, even if nothing happens. The goal is to make toilet time feel normal and low-pressure, not like a punishment.
When to Try MiraLAX
If dietary changes and a toilet routine haven’t helped within a few days, polyethylene glycol 3350 (sold as MiraLAX or store-brand equivalents) is a widely used over-the-counter option. It works by pulling water into the colon to soften stool, and it’s not absorbed into the bloodstream.
For children ages 4 to 10, Kaiser Permanente’s pediatric guidelines recommend mixing 3 teaspoons of MiraLAX into 8 ounces of any liquid (water, juice, or milk) once daily for the first 7 days. After that first week, you adjust based on results: add 1 teaspoon per week if stools are still hard, or reduce by 1 teaspoon per week if they become too loose. Once your child has been having regular, comfortable bowel movements for two full months, taper the dose down by 1 teaspoon per week rather than stopping abruptly. Stopping too quickly can cause constipation to return.
Glycerin Suppositories for Quick Relief
If your child is visibly uncomfortable and hasn’t gone in several days, a children’s glycerin suppository can provide relief within 15 to 30 minutes. For children ages 2 to under 6, the standard dose is one suppository once daily, inserted and held in place for about 15 minutes. These are meant for short-term use only, no longer than one week without a doctor’s guidance. Don’t use them if your child has abdominal pain with nausea or vomiting, and stop if you notice rectal bleeding or no bowel movement occurs after use.
What About Fiber Supplements and Probiotics?
Fiber supplements like psyllium have been studied in children and appear safe, with no serious side effects reported in clinical trials. One study found a psyllium-based supplement worked about as well as a standard laxative for constipation relief after 8 weeks. Mild side effects like gas and bloating can occur. If your child simply won’t eat enough high-fiber foods, a fiber supplement mixed into a drink or smoothie is a reasonable backup, though whole foods are always the better first choice.
Probiotics are a different story. Despite their popularity, the evidence for constipation relief in young children is weak. A randomized controlled trial testing the probiotic strain L. reuteri in children with chronic constipation found no clear benefit over placebo. You’re better off spending your energy on the strategies above.
Signs That Need Medical Attention
Most constipation in 5-year-olds is functional, meaning there’s no underlying disease causing it. But certain signs suggest something more is going on. Contact your child’s pediatrician if you notice fever, vomiting (especially if it’s green or bile-colored), blood in the stool, significant belly swelling, weight loss, or if your child seems generally unwell. Constipation that persists despite consistent use of a laxative and dietary changes also warrants a visit, as a referral to a pediatric gastroenterologist may be the next step.