Contraceptive pills contain a large amount of progesterone, which affects the formation and implantation of fertilized eggs to achieve the purpose of contraception, so it is only suitable for remedial measures after the failure of conventional contraception, which is a kind of first-aid means. General emergency contraceptive pills are recommended not to be used more than three times a year. If used frequently within a year, it can easily lead to endocrine disorders and hormone level malfunctions, resulting in disorders of the menstrual cycle, which are manifested as scanty menstruation, early menstruation, or persistent dribbling of menstruation, and in severe cases, amenorrhea or infertility can occur. Therefore, the abuse of contraceptive pills is very harmful to the body and it is recommended to use other safe contraceptive measures.