老年人急性尿潴留的原因①排尿通道阻塞或狭窄:任何原因引起的尿道阻塞,尿道狭窄都可产生尿道的机械性梗阻,使尿液不能排出。在老年疾病中常见的有前列腺增生,女性膀胱颈部纤维增生症,膀胱颈部肿瘤等。②神经性排尿功能障碍:中枢神经系统和周围神经系统的器质性或功能性病变,可以不同程度地干扰正常排尿的神经生理反射,导致急性尿潴留,如老年人的脑血管意外、外科手术麻醉后以及脊髓损伤等。③全身性疾病:全身情况不良的慢性疾病,常见的有老年人的严重糖尿病、动脉粥样硬化等,虽无尿路梗阻的因素存在,但间接影响排尿神经功能的紊乱,常可并发急性尿潴留。④药物因素:不少老年人因动脉粥样硬化高血压服用交感神经阻滞剂的降血压 Causes of acute urinary retention in the elderly ① urinary tract obstruction or stenosis: urethral obstruction caused by any reason, urethral stricture can produce urethral mechanical obstruction, so that urine can not be discharged. Common in elderly diseases are benign prostatic hyperplasia, female bladder neck fibrosis, bladder neck cancer and so on. ② neurogenic voiding dysfunction: the central nervous system and the peripheral nervous system, organic or functional lesions that can interfere with varying degrees of normal urinary neurophysiological reflex, resulting in acute urinary retention, such as cerebrovascular accident in the elderly, surgery After anesthesia and spinal cord injury. ③ systemic diseases: chronic diseases of poor general condition, common in elderly patients with severe diabetes, atherosclerosis, although no urinary tract obstruction exists, but indirectly affect the disorder of urinary nerve function, often complicated by acute urinary Retention. ④ drug factors: many elderly people taking atherosclerosis hypertension hypotension taking sympathetic blockers