2, such as puberty, menstrual irregularities, mainly because the sexual axis is not yet fully functional.
2. For example, if you have irregular menstruation during puberty, the main reason is that the function of the sexual axis has not yet been fully established.
3, such as perimenopausal menopausal women menstrual irregularities, may also be a physiological change. That is, the sexual axis sexual function sexual series is changed, the hormone level is down, there is a process.
4, then the menstrual irregularities in the gestational age is mainly to consider and the intrauterine device has no relationship, in addition and the uterus and ovaries organic lesions have no relationship, and then and mental psychological factors have no relationship.