Self-poisoning and the menstrual cycle.

A study of the menstrual cycle phase on day of admission was conducted on 156 women with regular menstruation admitted for self-poisoning to a medical department. No relation of statistical significance was found between the day of self-poisoning and the menstrual cycle phase. This was also the case when a distinction was made between suicidal and non-suicidal attempts and between the main toxic agents taken. The findings are partly in contrast to earlier investigations.