Which type of bladder incontinence is characterized by insufficient bladder contraction?

Overflow incontinence occurs when the bladder is unable to fully empty, leading to a constant dribbling of urine. This condition is predominantly characterized by insufficient bladder contraction, causing the bladder to become over-distended. This insufficient contraction may result from various factors, such as nerve damage, detrusor muscle weakness, or blockage from an enlarged prostate in men.

The other types of bladder incontinence do not primarily involve insufficient contraction. Stress incontinence involves the involuntary leakage of urine during activities that increase abdominal pressure, such as coughing or exercise, and is more related to sphincter weakness. Urge incontinence is characterized by a sudden, intense urge to urinate and is typically associated with overactive bladder contractions. Functional incontinence occurs when physical or cognitive impairments prevent an individual from reaching the toilet in time, rather than an issue with bladder contraction itself. Therefore, overflow incontinence is distinctly defined by the inadequate ability of the bladder to contract effectively.