Clinically, contraceptive pills are divided into long-acting contraceptive pills, short-acting contraceptive pills and emergency contraceptive pills. For long-acting contraceptive pills or short-acting contraceptive pills, the number of times you take them in a year may generally exceed 10, and it is recommended to just follow the medical advice. In the case of emergency contraceptive pill, taking it 10 times a year may harm the body and affect the normal endocrine function of human body, resulting in adverse consequences such as loss of libido, menstrual disorders and infertility. The emergency contraceptive pill, as a one-time use, contains a large amount of progestin, and when the pituitary gland senses a large amount of progestin, it will default to a woman being in a state of pregnancy. This is when estrogen levels drop dramatically, resulting in rough skin, decreased libido, and an affected menstrual cycle. If the emergency contraceptive pill is used repeatedly and the estrogen and progesterone levels in the body are disrupted for a long time, the patient will experience menstrual disorders or even amenorrhea. And if the state of menstrual disorders or high progesterone for a long time, the ovaries do not have normal and regular ovulation, the patient will not be able to conceive normally, which is manifested as infertility. In addition, long-term use of emergency contraceptives may also cause liver and kidney damage. If you use long-acting contraceptive pills or short-acting contraceptive pills to prevent pregnancy, you can take the pills daily in accordance with your doctor and do not need to worry too much about the number of times you use them. However, the emergency contraceptive pill should be used no more than three times a year, and condoms and IUDs are recommended for contraception.