Vaginal bleeding occurs when you stop taking ethinyl estradiol cyproterone tablets for three days, but there are individual differences. Ethinyl estradiol cyproterone tablets is a short-acting contraceptive pill, to be used under the guidance of a doctor, to exclude contraindications such as liver and renal function impairment before using the drug, after taking the drug, there will be nausea, vomiting, irregular vaginal bleeding and other side effects. When the pill is discontinued due to the sudden reduction of exogenous hormones, it can cause irregular vaginal bleeding, but a few women may also not experience bleeding symptoms. Short-acting contraceptive pills are a highly effective method of contraception, and when taken regularly under the guidance of a doctor, they have a significant contraceptive effect. However, long-term use of short-acting contraceptives will affect lipid metabolism, which is unfavorable to the cardiovascular system. For women with high-risk factors, such as long-term smoking and high blood pressure, long-term use of short-acting contraceptives is not recommended, and condoms, IUDs, and other contraceptive measures can be chosen.