女性尿道中段或外1/3的尿道阻力增加,而发生尿频、尿急、排尿困难者,称为远端尿道缩窄(distal urethal stenosis)。1963年Lyon首先发现并定名。此后,又有一些报导。现在认为是由于尿道外括肌痉挛引起,故又称外括约肌痉挛,甚常见。国内尚未见到系统的研究和报导。通过临床观察,我们发现本病在我国也并非少见,但常误诊为慢性尿路感染、尿道综合征或膀胱颈梗阻。我们对有膀胱刺激症状合并有排尿困难者进行了研究,17例诊断为本症,现将我们研究的结果报告于后,并加以讨论。 Urethral female urethra or 1/3 of the urethral resistance increased, while the occurrence of frequent urination, urgency, dysuria, known as distal urethral stenosis. Lyon first discovered and named in 1963. Since then, there are some reports. Now that is due to external urethral muscle spasm, it is also known as external sphincter spasm, is very common. Systematic researches and reports have not been seen in China yet. Through clinical observation, we found that the disease is not uncommon in our country, but often misdiagnosed as chronic urinary tract infection, urethral syndrome or bladder neck obstruction. We conducted a study of patients with bladder irritation with dysuria, and 17 cases were diagnosed as having the disease. The results of our study are reported later and discussed.