Defined by Rome IV criteria. (Less than one episode per week of uncontrolled passage of fecal material in an individual with a developmental age of at least 4 years old. Rome IV criteria specifies that symptoms are ongoing for at least 6 months and 2−4 episodes of fecal incontinence over 4 weeks.)

A perineal orifice centered within the sphincter complex that is the appropriate size for the child’s age and with a normal dentate line.

perfectly centered anal orifice within the sphincter mechanism that is too small with or without a skin-lined funnel anal canal

when the distal rectum is blind ending with no connection to the urinary tract or vagina

A term for the complete blockage of a tubular organ.

Less than 1 [fecal] accident per week (either voluntary or on an enema program)

When the distal rectum inserts at the “elbow” (or lower) of the urethra

a perfectly normal and centered anal canal with a rectal atresia above it

when the distal rectum inserts into the vestibule distal to the hymen

A term commonly used for abnormal narrowing of a tubular organ due to a lesion, e.g. scarring.

Less than one urinary daytime accident per week in a patient who is spontaneous voiding per urethra (without clean intermittent catheterization) in an individual with a developmental age of at least 4 years old.

When the distal rectum inserts above the “elbow” (at the triceps) of the urethra but below the bladder neck

perfectly normal and centered anal canal with a stenosis proximal to it in the anal canal or rectum

mucosal or full thickness rectal tissue that protrudes past the surgically created recto-cutaneous junction measured in millimeters occurring at least 3 months post-operatively

A term commonly used for abnormal narrowing of a tubular organ due to contraction of smooth muscle.

Less than one urinary daytime accident per week by either spontaneous voiding per urethra or clean intermittent catheterization in an individual with a developmental age of at least 4 years old. Nighttime accidents are not considered.

When the distal rectum inserts at the bladder neck (above the urinary sphincter)

when the distal rectum inserts into the posterior wall of the vagina proximal the hymen

A disease where ganglion cells are absent in the entire colon with transition zone in the ileum.

a surgery complication where the incision, a cut made during a surgical procedure, reopens.

A word meaning "situated away from the center of the body"

When the distal rectum inserts into the perineal skin (usually anterior) to the sphincter complex and outside the perfect center of the sphincter complex, and is too small and/or (male only) creates a sub epithelial tract.

when there is a normal vagina and normal anus with a fistula between the two from the dentate line to vestibule

medicine that softens stool with no stimulant effect

A female with a single perineal orifice between normal or underdeveloped labia on physical exam and a proximal confluence of the urinary, gynecologic, and gastrointestinal tracts.