Is the 45-day menstrual cycle polycystic?

Polycystic ovary syndrome can be manifested as prolonged menstruation or amenorrhea, specific diagnosis needs to check sex hormones, fasting insulin, etc. to be clear, menstrual cycle extension can be done the following examinations, sex hormone basal temperature measurement, uterine double annex B ultrasound, etc. to further clarify. The establishment and maintenance of normal menstruation depends on the neuroendocrine regulation of the hypothalamic-pituitary-ovarian axis, the periodic response of the target organ endometrium to sex hormones, and the patency of the lower reproductive tract. Any obstacle in any of these links can cause delayed menstruation. Common causes include polycystic ovary syndrome, premature ovarian failure, mental stress, weight loss and anorexia nervosa, exercise training such as long-term strenuous exercise, drug-induced amenorrhea, pituitary microadenoma, multiple curettage caused endometrial damage, etc.