Amenorrhea is just a phenomenon, and many diseases can cause amenorrhea. Generally, it is also a method for experienced gynecologists to directly inject progesterone into muscle. We don't deny it, but if the cause is not found out, blindly using hormones (contraceptives are hormones) to "regulate" will make the already disordered endocrine worse and more disordered, and it will undoubtedly recur after stopping taking drugs, because the cause has not been removed, and your menstrual cramps are just an illusion forced by exogenous hormones. If it is caused by pituitary or ovarian tumors, it will delay the diagnosis and treatment and have serious consequences. It is suggested that after you stop taking medicine for 30 days, you should check the endocrine with electrochemiluminescence, check the ovary and uterus with intracavitary four-dimensional color Doppler ultrasound, and do pituitary excitation test if necessary, so as to find the cause of amenorrhea and then get twice the result with half the effort.