Contraceptive pills are generally not recommended for women after the age of 40, as they are likely to induce uterine diseases. After the age of 40, women will enter perimenopause due to the gradual decline of ovarian function and the decrease of sex hormone secretion. Since birth control pills contain estrogen and progesterone, it is easy for women in this period to develop endometrial diseases such as endometrial cancer. If women after the age of 40 want to use contraception, they can use IUDs and condoms, which are effective, less harmful to the body and more economical. Women who need contraception after the age of 40 are advised to go to a regular hospital and consult a professional doctor, and do not blindly use medication on their own.