Shy-Drager综合征起病隐袭,早期不易发现,其误诊率可高达87.5％。本文报道4例长期误诊病例,供临床借鉴。 例1 男,54岁。8年前出现阳萎,3年前尿频、尿急和排尿不畅,并渐感两下肢无力及站立时头晕。曾在某医院诊为。前列腺肥大”,前后两次手术治疗,症状 Shy-Drager syndrome insidious onset, not easy to find early, the misdiagnosis rate can be as high as 87.5%. This article reports 4 cases of long-term misdiagnosis for clinical reference. Example 1 male, 54 years old. Impotence 8 years ago, urinary frequency 3 years ago, urinary urgency and poor urination, and gradually feel both lower limb weakness and dizziness when standing. Have been diagnosed in a hospital. Prostatic hypertrophy, "twice before and after surgery, symptoms