HPV is also known as human papilloma virus, this test is mainly to check whether the female cervix is infected with this virus, this virus has a great relationship with the occurrence of cervical cancer, this sampling is generally used a small brush to brush the cells of the cervical canal, if there is a little bleeding after sampling, then it means that it is bleeding from the top of the cervix, some women have cervical erosion or have small ruptured blood vessels, there will be such symptoms. This is not a big problem, pay attention to the observation. During this period of time, try to pay attention to rest and reduce activities, if the bleeding is more, you can take some hemostatic drugs under the guidance of the doctor, if not more, pay attention to rest, and then observe, usually 1-2 days later will be good on their own.