It is normal to take the emergency contraceptive pill and have blood in the leucorrhea. The main component of the emergency contraceptive pill is progestin, which will affect the normal hormone level in the body after taking it, causing a small amount of peeling and bleeding from the endometrium, which is relatively small and mixed in the leucorrhea. The bleeding caused by the emergency contraceptive pill lasts for a short period of time, around 2-3 days, and does not need to be treated with hemostatic drugs. Emergency contraceptive pills are often used for unprotected intercourse or as a rescue measure after contraceptive measures have failed, and are effective as long as they are taken correctly. The hormonal content of the emergency contraceptive pill is very high, and if taken frequently, it can affect normal endocrine secretion and curb the ovarian secretion function.