common bladder disorders in children

The bladder disorders in the chart below are seen in children that do not have nerve-brain damage to the bladder and urethra (mostly girls):

Disorder	Signs, Symptoms and Causes
Urge Syndrome	Attacks of sensation of needing to void several times a day, in which the urge sensation is countered with maneuvers such as squatting (causes the pelvic floor muscles to contract thus preventing bladder emptying). Pain and urinary incontinence may occur. Cause is detrusor overactivity with small amounts of urine in the bladder. Defecation (bowel movements) may be postponed causing constipation and/or bowel incontinence.
Dysfunctional voiding	Recurrent urinary tract infections. Voiding is less frequent. Cause may be constipation and pelvic floor muscle overactivity (pelvic muscle overactivity - repeated contractions prevent bladder from emptying).
Lazy Bladder Syndrome	Voiding occurs by increasing intra-abdominal pressure through straining or applying pressure to the suprapubic area (over the pelvic bone). Recurrent urinary tract infections and infrequent voiding are seen. The urge sensation is not present.