Taking emergency contraceptives with high blood lipids may increase the risk of thrombosis. Emergency contraceptive pills are generally composed of highly effective, high-dose progestins, which, when taken, can block the process of embryo implantation and achieve contraceptive effects. If patients with high blood lipids take emergency contraceptive pills there is a risk that the lipid metabolism will be affected in some way, which in severe cases can lead to embolism of blood vessels. Taking emergency contraceptive pills may also cause menstrual disorders such as early or delayed menstruation, irregular uterine bleeding, excessive menstrual bleeding, prolonged menstrual period and other menstrual disorders. It can also irritate the gastrointestinal tract and cause side effects such as nausea and loss of appetite. If couples do not want to have a baby for the time being, it is best to take regular contraceptive measures and not leave it to chance to avoid damage to women’s health due to unwanted pregnancy.