Abstract: The neuropsychiatric manifestations of systemic lupus erythematosus are frequent. One of the most serious presentations is convulsion. This study was carried out to evaluate the relation between convulsion and anti-DNA antibody levels. An analytic, retrospective case-controlled study was carried out, with reference to 1001 recorded cases of systemic SLE lupus erythematosus in Lupus Unit, Rheumatology Center, Shariati Hospital, Tehran University of Medical Sciences. The frequency Of convulsion was 13.3%. There ...