The objective of the present study is to determine the rate  of myocardial infarction  among sample patients attending in CCU medical ward in AL-Zahra hospital and  to identify factors  associated with the myocardial infarction (age, gender, residence, occupation and educational level ), Family history (hypertension…..etc. A case control study conducted in Karbala city / AL-Zahra hospital /medical ward /CCU for cardio pulmonary care unit..  Sampling was  (non probability convenient ) the study  was included  100 cases and 100 controls.. The study was started from 15^th July 2015 to the 20^th October 2015.  Data was collected by questionnaire to obtain socio- demo graphic information. The  result shows that mean age of the subjects was  49.02± 8.3 years, and the 23.5% were Free  profession ; about (24.5%)  of patient with myocardial infarction  were smokers. Analyses of results by (chi-square test ) show that (unemployment, low educational level, Family history for hypertension, overweight, chronic diseases: there is a high significant association between hypertension and myocardial infarction,  smoking and lipid profile )  were significant  factors  associated with myocardial in fraction  . Conclusions  This study showed the rate of myocardial infraction  was 12.5 %  among age group (51-60) year,  factors that were associated with higher rate of myocardial infraction  were unemployment, low educational level, Family history for hypertension, overweight and chronic diseases: there is a high significant association between hypertension and myocardial infarction,  smoking and lipid profile.