Male and female sex hormones in primary headaches

Table 1 IHS classification (ICHD-3) for pure menstrual and menstrually-related migraine

Pure menstrual migraine	Menstrually-related migraine
A. Attacks, in a menstruating woman, fulfilling criteria for migraine without aura	A. Attacks, in a menstruating woman, fulfilling criteria for migraine without aura
B. Attacks occur exclusively on day 1 ± 2 (i.e, days − 2 to + 3)^a of menstruation^b in at least two out of three menstrual cycles and at no other times of the cycle	B. Attacks occur on day 1 ± 2 (i.e, days − 2 to + 3)^a of menstruation^b in at least two out of three menstrual cycles and additionally at other times of the cycle

^aThe first day of menstruation is day 1 and the preceding day is day − 1; there is no day 0
^bFor the purposes of this classification, menstruation is considered to be endometrial bleeding resulting from either the normal menstrual cycle or from the withdrawal of exogenous progestogens, as in the case of combined oral contraceptives and cyclical hormone replacement therapy

ISSN: 1129-2377