Yosmin is a short-acting contraceptive, mainly a combination of estrogen and progesterone, which can cause irregular vaginal bleeding as a side effect after oral administration in clinical practice. If the bleeding is small, continue to take it orally and the bleeding will stop. If the amount of bleeding is more, appropriate medication should be given, for example, you can take antiemetic drugs, like Yunnan Baiyao, Anluo blood, usually eat for about three days, the symptoms of bleeding will disappear. However, at the same time, you can’t stop taking Yusmin, you have to continue to take it all the time. In addition, Yosmin can also cause weight gain, so, after taking Yosmin orally, you must pay attention to more exercise to avoid causing weight gain.