Not surprisingly, symptoms or changes are considered to be related to menstruation when there is a cyclic pattern of occurrence.
Women vary tremendously in the number, type, severity, and pattern of symptoms before menstruation.
The only thing common to all the types of cyclic changes are the decrease or elimination of the symptoms in the two weeks after menstruation up to ovulation. This category is the most common and includes the vast majority of women. These women have only one or two symptoms. A syndrome is at least three or more. So, women who have less may be best off treating the symptoms individually, rather than treatments that alter the menstrual cycle or hormones.