There are more reasons for the menstrual cycle to change from 30 days to 45 days, and it is considered to be related to endocrine disorders, taking drugs and other factors.
1. Endocrine disorders:
(1) Mental stress: if a woman has high work pressure or often stays up late, etc., it may lead to endocrine dysfunction, which in turn affects the normal ovulation of the ovaries, which in turn affects menstruation, leading to delayed menstruation or reduced menstrual flow.
(2) Gynecological endocrine diseases: If a woman has polycystic ovary syndrome, premature ovarian failure and other gynecological endocrine diseases, due to the abnormal function of the reproductive endocrine axis, which in turn affects the follicle growth and development, irregular ovulation or no ovulation, so it will lead to delayed menstruation or amenorrhea.
2. Taking medication: If patients take estrogen-progestin preparations or progestin preparations in the pre-menstrual period, due to the support of estrogen-progestin in the endothelium, it cannot be peeled off as scheduled, and the endothelium can not be completely peeled off and menstruation can not be formed until estrogen-progestin is withdrawn after the medication is stopped, so it will lead to the delay of menstruation.
For women whose menstrual cycle has changed from 30 days to 45 days, it is recommended that they go to a regular hospital in time to improve ultrasound, sex hormones and other relevant examinations to clarify the cause of the disease and then targeted treatment under the guidance of the doctor.