Mayo Clinic Health Manager
Get free personalized health guidance for you and your family.
Get StartedCauses
By Mayo Clinic staffConstipation most commonly occurs when waste or stool moves too slowly through the digestive tract, causing it to become hard and dry.
Many factors can contribute to constipation in children, including:
- Withholding. Your child may ignore the urge to have a bowel movement because he or she is afraid of the toilet or doesn't want to take a break from play. Some children withhold when they're away from home because they're uncomfortable using public toilets. Painful bowel movements caused by large, hard stools also may lead to withholding. If it hurts to poop, your child may try to avoid a repeat of the distressing experience.
- Early toilet training. If you begin toilet training too soon, your child may rebel and hold in his or her stools. If toilet training becomes a battle of wills, a voluntary decision to ignore the urge to poop can quickly become an involuntary habit that's tough to break.
- Changes in diet. Not enough fiber-rich fruits and vegetables or fluid in your child's diet may cause constipation. For some children, too much milk and not enough water can lead to constipation as well.
- Changes in routine. Any changes in your child's routine — such as travel, hot weather or stress — can affect the way his or her bowels function.
- Medication or illness. Certain antacids, antidepressants and various other drugs can contribute to constipation. Changes in your child's appetite or diet due to illness may have the same effect.
- Cow's milk allergy. An allergy to cow's milk or drinking too much cow's milk sometimes leads to constipation.
- Family history. Shared genetic or environmental factors may make a child more likely to experience constipation.
- Medical conditions. Rarely, constipation in children indicates an anatomic malformation, a metabolic or gastrointestinal problem, or another underlying condition.
- Ferry GD. Constipation in children: Etiology and diagnosis. http://www.uptodate.com/home/index.html. Accessed Feb. 19, 2009.
- Ferry GD. Prevention and treatment of acute constipation in infants and children. http://www.uptodate.com/home/index.html. Accessed Feb. 19, 2009.
- Ferry GD. Treatment of chronic functional constipation and fecal incontinence in infants and children. http://www.uptodate.com/home/index.html. Accessed Feb. 19, 2009.
- Evaluation and treatment of constipation in infants and children: Recommendations of the North American Society for Pediatric Gastroenterology, Hepatology and Nutrition. Journal of Pediatric Gastroenterology and Nutrition. 2006;43:e1.
- Constipation in children. National Digestive Diseases Information Clearinghouse. http://digestive.niddk.nih.gov/ddiseases/pubs/constipationchild/index.htm. Accessed Feb. 20, 2009.
- Parenting corner Q&A: Constipation. The American Academy of Pediatrics. http://www.aap.org/publiced/BR_Constipation.htm. Accessed Feb. 20, 2009.
- Parenting corner Q&A: Soiling (encopresis). http://www.aap.org/publiced/BK5_Soiling.htm. Accessed Feb. 20, 2009.
- Wald A. Constipation and defecation problems. American College of Gastroenterology. http://www.acg.gi.org/patients/gihealth/pdf/constipation.pdf. Accessed Feb. 24, 2009.
- Kay M, et al. Common gastrointestinal problems in pediatric patients. American College of Gastroenterology. http://www.acg.gi.org/patients/gihealth/pdf/pediatric.pdf. Accessed Feb. 24, 2009.
- Culbert TP, et al. Integrative approaches to childhood constipation and encopresis. The Pediatrics Clinics of North America. 2007;54:927.
- Hoecker JL (expert opinion). Mayo Clinic, Rochester, Minn. March 10, 2009.
- Grothe RM (expert opinion). Mayo Clinic, Rochester, Minn. March 18, 2009.