Background:The main purpose of this article is to explore the differences between mild-to-moderate acute stroke patients with hyperhomocysteine and similar patients with normal homocysteine in risk factors,cerebral arterial stenosis,neurological deficit,cognitive function impairment.The subjects included gender,body mass index,whether to combine hypertension,blood glucose level,blood lipid,national institutes of health stroke scale(NIHSS)score,whether to combine cerebral arterial stenosis and Montreal cognitive assessment scores.Method:Twentyseven mild-to-moderate acute stroke patients with hyperhomocysteinemia(NIHSS score≤15 points)and 34 mildto-moderate acute stroke patients without hyperhomocysteinemia were admitted in the past year as the research objects.N=27 stroke patients with hyperhomocysteine were set as the experimental group,and N=34 patients without hyperhomocysteine were set as the control group.A retrospective study of clinical data from both groups of patients was conducted.Compare the data of the 2 groups of patients with differences in the above study data,and then explore the specific impact of hyperhomocysteinemia on the above experimental indicators.Results:(1)NIHSS scores of patients in the experimental group were higher than those in the control group,and the difference was statistically significant(P<0.05).(2)The incidence of cerebrovascular stenosis(including intracranial and extracranial arteries)in the experimental group was significantly higher than that in the control group,and the difference was statistically significant(P<0.05).(3)The degree of cognitive impairment in the experimental group was significantly higher than that in the control group,with a statistically significant difference(P<0.05).(4)The proportion of male patients in the study group was significantly higher than that in the control group(P<0.05).(5)The level of homocysteine in the experimental group was positively correlated with NIHSS score(r=0.602,P<0.05)and negatively correlated with Montreal cognitive assessme