目的　探讨精神科住院病人脑血管意外发生的原因。方法　作者对 45例在精神科住院发生脑血管意外患者与 45例综合医院精神科脑血管病患者及 90例未发生卒中的同期精神科住院病人 ,进行了比较研究。结果　精神科脑卒中多发生于情感疾病、神经症、器质性疾病 ,但精神分裂症较少。与神经科脑血管病比较 ,病前高血压、冠心病、糖尿病、高脂血症患病率较低 (P <0 0 5或 0 0 1)。与精神科未卒中发作住院病人比较 ,服用抗抑郁药、抗焦虑药、碳酸锂、合并用药及发生药源性低血压、锥体外副反应及心脏病较多 (P <0 0 5或 0 0 1)。结论　提示精神科住院病人发生脑卒中可能与精神疾病、用药及某些副反应有关。 Objective To investigate the causes of cerebrovascular accidents in psychiatric inpatients. Methods The authors compared 45 patients with cerebrovascular accident admitted to psychiatric hospital with 45 patients with psychiatric cerebrovascular disease in general hospital and 90 psychiatric inpatients without stroke at the same time. Results Psychiatric stroke occurred in emotional diseases, neurosis, organic diseases, but less schizophrenia. The prevalence of prehypertension, coronary heart disease, diabetes and hyperlipidemia was lower than that of neurological cerebrovascular disease (P <0.05 or 0.01). Compared with the patients who did not have stroke stroke in psychiatric department, taking antidepressants, anti-anxiety drugs, lithium carbonate, combined medication and drug-induced hypotension, extrapyramidal side effects and heart disease were more (P <0 05 or 0 0 1). The conclusions suggest that stroke in psychiatric inpatients may be related to mental illness, medication and some side effects.