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A urethral stricture is a narrowing of the urethra caused by injury, instrumentation, infection and certain non-infectious forms of urethritis. == Signs and symptoms == The hallmark sign of urethral stricture is a weak urinary stream. Other symptoms include: * Splaying of the urinary stream * Urinary frequency * Urinary urgency * Straining to urinate * Pain during urination * Urinary tract infection * Prostatitis * Inability to completely empty the bladder. Some patients with severe urethral strictures are completely unable to urinate. This is referred to as acute urinary retention, and is a medical emergency. Hydronephrosis and renal failure may also occur. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「urethral stricture」の詳細全文を読む スポンサード リンク
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