Urge Incontinence: Leaking Before You Reach the Toilet

最終更新日： 8月 15, 2026

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Urge incontinence is a sudden, overwhelming need to pass urine that is almost impossible to hold, with leakage happening before you reach the toilet. It is the second commonest form of urinary incontinence after the stress type, and it becomes more common with age and with obesity. Unlike stress incontinence, which is overwhelmingly a female condition, urge incontinence affects men substantially as well.

The first thing worth saying to anyone living with this: it is not carelessness and it is not a matter of willpower. The bladder is contracting on its own, without permission and without warning. No amount of trying harder overrides a muscle that has already started to squeeze — which is why treatment works and self-blame does not.

• 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

の3つの主な原因 失禁を促す

1. Detrusor overactivity — the bladder muscle contracts involuntarily and without warning, instead of waiting until you decide to go. This produces the sudden powerful urge and the leak that follows it, and it is the commonest mechanism.
2. 膀胱のコンプライアンス低下 — a healthy bladder stretches like a resilient balloon as it fills. When it loses that give, pressure rises early, and urine is pushed out through the urethra before the bladder is anywhere near full.
3. Bladder hypersensitivity (sensory urgency) — the nerve endings in the bladder lining over-report. Caffeine, cold and ordinary filling all generate an exaggerated urge signal, and the bladder feels desperate at a volume it should handle comfortably.

How it is assessed

Assessment covers a full history, physical examination, a voiding diary and any imaging needed to exclude other causes. The diary does more work than patients expect — it turns a vague impression into a record of when the urgency strikes, how much you passed and what you had been drinking, which is often where the pattern becomes obvious.

Where symptoms are mixed, or have not responded as expected, a urodynamic study measures what the bladder is actually doing as it fills — confirming involuntary contractions, and separating urge incontinence from 腹圧性尿失禁 and from a bladder that is failing to empty. Dr. Soarawee performs urodynamic studies at Bangkok Hospital Headquarters.

Treatment: the AUA’s three levels

1. Behavioural therapy — first line

• Bladder training — gradually stretching the interval between visits to the toilet, so the bladder relearns to hold more.
• Cutting bladder irritants — caffeine above all, plus alcohol, carbonated drinks and smoking. Caffeine is worth trying first because the effect is often noticeable within days rather than weeks.
• Weight loss where relevant, since obesity is one of the two established risk factors.
• Pelvic floor training (Kegel exercises) — a strong pelvic floor helps suppress an urge long enough to reach the toilet.

2. Medication — second line

• 抗ムスカリン剤 — block the involuntary bladder contractions. Dry mouth and constipation are the usual side effects, and constipation is worth watching since it aggravates bladder symptoms in its own right.
• ベータ3アゴニスト — relax the bladder muscle to improve storage, generally with fewer anticholinergic side effects.

A partial response to the first drug is not the end of the line — the dose can be adjusted or a different agent tried, and many patients settle on the second or third attempt.

3. Bladder botulinum toxin (Botox) — third line

Where behaviour and medication have not been enough, botulinum toxin is injected into the bladder wall through a cystoscope, temporarily quietening the overactive muscle. It works well in the right patients, and the effect lasts roughly 6 months, so maintenance injections are needed to sustain it.

Bladder botulinum toxin injection is not performed at Bangkok Hospital Headquarters — if your case reaches that point, a referral to a centre that offers it can be arranged. Everything before it, including the urodynamic study and both earlier treatment levels, is available here, and the great majority of patients are managed successfully without ever needing the third line.

Outcomes vary a great deal between patients, so the goal is worth agreeing at the start. Some are aiming for complete dryness; for others, being able to sit through a meal or a meeting without anxiety is the win that matters. Both are legitimate targets, and naming yours makes the treatment plan a good deal easier to judge.

尿意切迫症にお悩みで専門的な評価をご希望の場合は、ソアラウィー・ウィーラソポーン医師がバンコク病院本院にて専門外来を行っております。. 診療をご予約. サミティウェート・シーラチャ病院のご予約は、泌尿器科（電話番号：）までお問い合わせください。 088-022-1445.

切迫性尿失禁に関するよくある質問

切迫性尿失禁と腹圧性尿失禁の違いは何ですか？

Urge incontinence is urine leakage triggered by a sudden, uncontrollable urge to void — the bladder contracts involuntarily before the patient can reach the toilet. Stress incontinence, by contrast, is leakage caused by physical exertion that increases abdominal pressure (coughing, sneezing, lifting, laughing), without an urge sensation. Urge incontinence is the second most common type of incontinence, affects men as well as women, and is associated with aging and obesity. Both conditions can coexist as mixed incontinence, and a urodynamic study can establish which mechanism is dominant.

尿意切迫症を改善できる生活習慣の変更にはどのようなものがありますか？

AUAのガイドラインでは、第一選択の管理は行動療法です。これには、膀胱訓練（排尿間隔を徐々に長くすること）、カフェインやアルコールなどの膀胱刺激物の摂取を減らすまたはなくすこと、健康的な体重を維持すること、骨盤底筋トレーニング（ケーゲル体操）が含まれます。これらの介入により、薬物療法なしで尿意切迫エピソードや尿漏れの頻度を大幅に減らすことができます。水分摂取量、排尿時間、尿漏れエピソードを記録する排尿日記をつけることは、患者と泌尿器科医の両方がパターンを特定し、進行状況を監視するのに役立ちます。.

過活動膀胱による尿意切迫感の治療としてボトックス注射が推奨されるのは、他の治療法（生活指導、内服薬など）で十分な効果が得られない場合です。

Intravesical Botulinum toxin (Botox) injection is recommended as a third-line treatment when behavioral therapy and oral medications have not provided adequate symptom control. The procedure is performed via cystoscopy, and Botox temporarily paralyzes the overactive bladder muscle, reducing involuntary contractions and urgency episodes. Effects typically last 6 months, after which repeat injection is required to maintain benefit. This procedure is not performed at Bangkok Hospital Headquarters; assessment, urodynamic study and the first two treatment levels are provided there, with referral arranged if third-line treatment is needed.

免責事項 この記事は、バンコク病院本部のボード認定泌尿器科医であるソアラウィー・ウィーラソポン医師（Dr. Soarawee Weerasopone）によって執筆および監修されています。教育目的のみを意図しており、医学的なアドバイスを構成するものではありません。個人的なメッセージチャンネルを通じて、医学的なアドバイス、診断、処方箋が提供されることはありません。医療処置を開始する前に、必ず資格を持った医療従事者にご相談ください。.