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逆行射精是虽有射精感觉,但精液不从尿道排出,而从后尿道进入膀胱的一种病症,常为男性不育的原因之一。由于腹部血管外科、结肠手术、交通事故及某些降血压药物应用的增多,本病的发病率也有所增加,现将逆行射精的发病机制及治疗作一综述。一、男性后尿道的解剖后尿道是由两层肌肉组成的管道,直接与膀胱壁的平滑肌层相连。膀胱的内层及外层纵形平滑肌层分别延续形成尿道的内纵外环肌,然后终止于尿生殖隔附近。尿生殖隔中的横纹肌则向上扩展,在远端与尿道壁层相接合。后尿道及副性腺的主要自主神经支配是
Retrograde ejaculation although ejaculation feeling, but the semen is not discharged from the urethra, and from the urethra into the bladder a disease, often one of the reasons for male infertility. Due to abdominal vascular surgery, colon surgery, traffic accidents and the use of certain antihypertensive drugs, the incidence of this disease has also increased, the retrogressive ejaculation now pathogenesis and treatment are reviewed. First, the posterior urethra anatomy of the urethra is composed of two layers of muscle pipeline, directly connected with the smooth muscle layer of the bladder wall. Bladder inner and outer longitudinal smooth muscle layer, respectively, continued formation of the urethral longitudinal outer ring muscle, and then terminated in the vicinity of the urogenital septum. The striated muscle in the urogenital septa expands upward and engages the urethral wall at the distal end. The main autonomic innervation of the posterior urethra and the accessory gonads is