effect of sex education on improving couples marital satisfaction in isfahan

background: marital satisfaction is the most important and fundamental factor in stability and continuity of couples′ life. it exists when the situation in marital relationships is in agreement with its expectation. while couples can increase their satisfaction level in marital life, the family remains safe. therefore the effect of sexual education on the growth of marital satisfaction and its dimensions such as adjustment in spouse’s personality, relationship improvement, sexual relationship, conflict solving, and equalitarian roles were the purpose of this research. methods: in this quasi-experimental pre-post test study, 60 couples from cultural centers in isfahan were selected and randomized in two of experimental and control groups. the data was collected by enrich short questionnaire and demographic characteristics of studied subjects recorded. the data was analyzed with spss. findings: sex education had significant effect on the increase of marital satisfaction (p<0.001, f=118.78), subscales of satisfaction with spouse’s personality (p<0.001, f=69.89), relationship improvement (p<0.001, f=90.98), sexual relationship (p<0.001, f=51.87) conflict solving (p<0.001, f=74.46).it had no significant effect on the subscales such as leisure time (p=0.28, f=7.54) and interests to relatives and friends (p=0.18, f=2.35) conclusion: sexual relationship is a key factor in marital life. sex education could increase the overall marital satisfaction and happiness due to increases of sexual satisfaction