女性の異常な排尿：活動性の低い膀胱疾患

最終更新日： 2026年5月18日

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Female abnormal urination problems are increasingly common in my female urology clinic. Today we will discuss about “Underactive bladder” disease in female. Normally, the bladder’s function is to store urine and squeeze all urine out when we urinate, but underactive bladder prevents the bladder from contracting as strongly as it should, leading to the following symptoms.

• 泌尿器センター バンコク病院 タイ オンライン予約 02-310-3009 bhquro@bdms.co.th
• サミティジ・シラチャ病院 チョンブリ 088-022-1445

• Weakened urinary stream
• Prolonged time needed to complete urination
• Sense of incomplete bladder emptying

After urological assessment rules out other common causes such as bladder infection, we focus on underactive bladder disease and its etiology.

の病因 underactive bladder disease

1. Neurologic-related conditions – the bladder is controlled by the brain and spinal cord; disorders affecting either can impair bladder function.
   • 脳卒中
   • 脳または脊髄腫瘍
   • 脊髄損傷
   • 椎間板ヘルニア
   • Multiple sclerosis
2. Aging process – the detrusor muscle surrounding the bladder weakens with age, leading to reduced contraction strength.

3. Prolonged bladder over-distension – commonly following postoperative spinal anesthesia.
4. Diabetes Mellitus – poor DM control leads to reduced sensation of bladder fullness and weakened bladder contraction.

Treatment options for underactive bladder disease:

1. 行動療法
   • Timed voiding – urinating on a regular schedule to prevent overdistension
   • Assisted voiding by abdominal straining
   • Double-voiding technique – attempting to urinate again 20 minutes after the first void
2. Oral medications – agents that increase bladder sensation and facilitate the voiding mechanism
3. Clean intermittent self-catheterization (CIC) – indicated when high post-void residual urine causes complications such as urinary retention, recurrent bladder infections, or renal impairment

Female underactive bladder is always a challenging issue for both urologist and patient. Better understanding the cause and selecting the proper treatment will bring out the best outcome.

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Frequently Asked Questions About Female Underactive Bladder

What is underactive bladder in females and what are the symptoms?

Underactive bladder is a condition where the bladder muscle (detrusor) cannot contract with sufficient strength to empty the bladder completely. In women, this typically presents as a weak urinary stream, prolonged time needed to urinate, and a persistent sense of incomplete emptying. Unlike overactive bladder, it is caused by insufficient bladder contraction rather than excessive urgency, and is often underdiagnosed.

What causes underactive bladder?

The main causes include neurological conditions affecting the brain or spinal cord (stroke, spinal cord injury, disc herniation, multiple sclerosis), natural aging of the detrusor muscle, prolonged bladder over-distension (such as after spinal anesthesia), and poorly controlled diabetes mellitus which damages the nerve supply to the bladder. Identifying the underlying cause is essential for choosing the right treatment approach.

How is underactive bladder treated?

Treatment starts with behavioral therapy: timed voiding schedules, assisted voiding by straining, and double-voiding techniques. Oral medications that increase bladder sensation or facilitate emptying may be added. When high residual urine causes complications such as urinary retention, recurrent infections, or kidney impairment, clean intermittent self-catheterization (CIC) is recommended as a safe and effective long-term solution.

If you are experiencing abnormal voiding symptoms such as weak stream or incomplete bladder emptying, Dr. Soarawee Weerasopone offers specialist consultations at Bangkok Hospital Headquarters. 診療をご予約.

**免責事項:** このコンテンツは、バンコク病院本部の認定泌尿器科医であるSoarawee Weerasopone博士によって作成およびレビューされました。教育目的のみのものであり、医学的アドバイスを構成するものではありません。いかなる医療処置を開始する前にも、必ず資格のある医療専門家にご相談ください。.