Little is known about psychological and social factors influencing the frequency of migraine attacks. The aim of the present study was to study whether anger, anger-expression, anxiety, depression, somatization and childhood adversities influence the frequency of migraine attacks. 53 female patients suffering from migraine with a mean monthly headache frequency of 6.85 took part. Groups of patients with 6 or less monthly attacks (N = 27) vs. patients with 7 or more days (N = 26) were formed. Logistic regression analysis revealed, that only the variable "anger-in" resulted in an improvement of prediction of group-membership (rate of correct classified cases: 69.8%). Tendency to repress anger increases the probability to be a member of the group with frequent attacks. This result points out the relevance of anger-expression and -perception for the psychotherapy of migraine.