Urinary incontinence can be classified into five types: stress incontinence, urge incontinence, mixed incontinence, overflow incontinence, and functional incontinence. The pathogenesis and clinical manifestations of each type differ, requiring targeted intervention.
Stress Incontinence: Stress incontinence refers to involuntary leakage of urine when abdominal pressure suddenly increases, commonly occurring during coughing, sneezing, or exercise. It is mainly related to pelvic floor muscle relaxation and decreased urethral sphincter function, and is more common in postpartum or postmenopausal women. Mild to moderate cases can be improved with Kegel exercises, while severe cases require surgical treatment such as mid-urethral sling surgery.
Urge Incontinence: Urge incontinence is characterized by a sudden, strong urge to urinate that cannot be controlled, often accompanied by urinary frequency and urgency. Causes include overactive bladder, urinary tract infection, or neurological disorders. Treatment may involve bladder training combined with medication, such as solifenacin succinate tablets and oxybutynin hydrochloride extended-release tablets (M receptor antagonists). Botox injections in the bladder may be necessary in some cases.
Mixed Urinary Incontinence: Mixed urinary incontinence exhibits both stress and urge characteristics, accounting for approximately 30% of urinary incontinence patients. Urodynamic testing is needed to determine the dominant type. Treatment requires a combination of behavioral therapy, medication, and even surgical intervention. It is common in elderly women and closely related to declining hormone levels and pelvic floor degeneration.
Overflow Incontinence: Overflow incontinence results from bladder emptying obstruction, often seen in conditions such as benign prostatic hyperplasia and diabetic neurogenic bladder. Symptoms include a weak urine stream and a feeling of incomplete bladder emptying. Treatment requires relieving lower urinary tract obstruction, such as using tamsulosin hydrochloride extended-release capsules to improve urination. Severe cases may require catheterization or cystostomy.
Functional Urinary Incontinence: Functional urinary incontinence is caused by motor impairments or cognitive deficits, such as arthritis patients' inability to urinate promptly or dementia patients' loss of urination awareness. Treatment requires improving mobility, establishing a scheduled urination plan, and using assistive devices such as adult diapers. Bladder function is usually normal in this type of incontinence; the focus is on eliminating environmental obstacles.
