If a woman is 48 years old and has menstruation, she still needs to use contraception, but if she has already gone through menopause, she does not need to use contraception anymore. If a woman has menstruation at the age of 48, although ovarian function has decreased and she cannot ovulate regularly, she still has sporadic ovulation, and if she does not take contraceptive measures, she may still get pregnant. For some 48-year-old women who are already menopausal, due to the decline in ovarian function, there will no longer be the development and discharge of mature follicles, so the conditions for conception are also lost, and there will be no pregnancy, and there will be no need for contraception. However, since women at the age of 48 may have symptoms such as endocrine disorders and declining liver function, it is not advisable to take birth control pills even for contraception, and it is better to use condoms and intrauterine devices to achieve contraceptive effects. It is recommended to go to a regular hospital for a detailed examination and decide according to your own situation under the guidance of a professional doctor if you need to use contraception at the age of 48.