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Urinary incontinence (types (stress (Loss of urethral sphincter tone,…
Urinary incontinence
types
stress
Loss of urethral sphincter tone
multipara, pelvic surgey, obesity, postmenopausal women
due to increased intra abdominal pressure
external urethral sphincter MC affected
overflow
impaired contractility and outflow obstruction
incomplete emptying and continuous dribbling of urine
urge incontnence
contraction of detrussor muscle
thinking about water etc. causes sudden urge to urinate
frontal lobe or internal capsule infarcts
due to loss of central inhibition
Parsympathetic system
relaxation of the urethral sphincters
contraction of detrussor
sympathetic system
relaxation of the detrussor
contraction of the urethral sphincter