Functional constipation is a common problem in childhood, with an estimated prevalence of 3% worldwide. Constipation is defined as functional constipation if there is no underlying organic cause, which is the case in up to 95% of children. This condition can be seen in healthy children 1 year and older and is particularly common among preschool-aged children.
Most individuals have bowel movements at regular intervals, and although the frequency varies from person to person, stools should pass without significant straining or discomfort. Functional constipation is often described as difficult or infrequent bowel movements/ deviation from normal frequency, painful defecation, the passage of hard stools, and/or the sensation of incomplete evacuation of stool. It is often not caused by any underlying systemic cause or anatomical defect. It is usually multifactorial, including environmental conditions, stress, diet, coping skills, and social support.
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