Bleeding symptoms after the use of interferon, to observe their own body’s response, may be the arrival of menstruation or ovulation bleeding and other kinds of problems caused by the need to carry out a specific examination first. If the side effects of interferon are caused by bleeding from the vaginal mucosa, it is best to stop using the drug in time, and the bleeding will slowly disappear after stopping the drug. Bleeding after the use of interferon is relatively rare, basically there will be no side effects, many patients may experience mild abdominal pain after using the drug, and there may also be occasional low-grade fever, but after a period of time will disappear on its own. It is recommended that after the emergence of abnormal problems, it is best to go to the hospital to consult with the doctor, and then according to the doctor’s examination to determine the type of disease.