ConstipationLaxativesDefecationCatharticsGastrointestinal TransitFecal ImpactionEncopresisDefecographyIrritable Bowel SyndromeFecal IncontinenceGastrointestinal MotilityRectumSenna ExtractMegacolonColonic Diseases, FunctionalAnal CanalAbdominal PainBiofeedback, PsychologyGastrointestinal AgentsManometryChronic DiseaseLoperamideToilet TrainingRectal DiseasesColonSerotonin 5-HT4 Receptor AgonistsEnemaGastrointestinal DiseasesRadiography, AbdominalTreatment OutcomePelvic FloorDiarrheaLactuloseHirschsprung DiseaseRectal ProlapseRectoceleAlprostadilDiagnostic Techniques, Digestive SystemBisacodylBenzofuransQuestionnairesDietary FiberThymelaeaceaeNeurogenic BowelPsylliumQuality of LifeDigestive System Surgical ProceduresColonic DiseasesActinidiaHemorrhoidsAntidiarrhealsMagnesium OxideIleusSeverity of Illness IndexDioctyl Sulfosuccinic Acid