Taking the pill twice a year is not harmful to the body if the interval is more than two months. The frequent use of emergency contraceptive pills can affect women’s menstruation, inhibit the endometrium, delay the onset of menstruation, and lead to reduced menstruation, irregular menstruation, and in serious cases, amenorrhea, and in serious cases, female fertility can be critical to infertility. After taking birth control pills, the gastrointestinal tract of the body will be more stimulated, abdominal pain, diarrhea, nausea, vomiting and other symptoms, due to the impact of birth control pills on the body’s hormones, the body’s endocrine disorders, resulting in melanin pigmentation on the skin growth and acne. After taking the pill, irregular vaginal bleeding can easily occur in daily life. For women who need contraception frequently, they can choose other contraceptive methods to reduce the damage to their bodies.