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In voluntary urination, the bladder's normally relaxed detrusor muscle contracts to squeeze urine from the bladder. One study, of 109 children diagnosed with giggle incontinence at Schneider Children's Hospital in New York, concluded that the cause of giggle incontinence is involuntary contraction of the detrusor muscle induced by laughter. [5]
Urinary incontinence (UI), also known as involuntary urination, is any uncontrolled leakage of urine. It is a common and distressing problem, which may have a large impact on quality of life . [ 1 ] Urinary incontinence is common in older women and has been identified as an important issue in geriatric health care.
The most common cause of this condition for women and children is a urinary tract infection. The most common cause of urinary frequency in older men is an enlarged prostate. [2] Frequent urination is strongly associated with frequent incidents of urinary urgency, which is the sudden need to urinate.
Diurnal enuresis is daytime wetting (functional daytime urinary incontinence). Nocturnal enuresis is nighttime wetting. Enuresis is defined as the involuntary voiding of urine beyond the age of anticipated control. Both of these conditions can occur at the same time, although many children with nighttime wetting will
The typical development process begins with one- and two-year-old children developing larger bladders and beginning to sense bladder fullness. Two- and three-year-old children begin to stay dry during the day. Four- and five-year-olds develop an adult pattern of urinary control and begin to stay dry at night. [6]
Overactive bladder is characterized by a group of four symptoms: urgency, urinary frequency, nocturia, and urge incontinence. Urge incontinence is not present in the "dry" classification. [12] Urgency is considered the hallmark symptom of OAB, but there are no clear criteria for what constitutes urgency and studies often use other criteria. [1]
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Enuresis is a repeated inability to control urination. [2] Use of the term is usually limited to describing people old enough to be expected to exercise such control. [3] Involuntary urination is also known as urinary incontinence. [4] The term "enuresis" comes from the Ancient Greek: ἐνούρησις, romanized: enoúrēsis.