It is perfectly acceptable to draw blood for the Hepatitis B panel during a woman’s menstrual cycle. Because any of the five items are not affected by the menstrual cycle, or by the endocrine environment and hormone levels in the body, it is possible to draw blood for the Hepatitis B pentameter at any time of the day. At the same time, because of the radioimmunization method to check, there is no need to fast for water before the test. There are some tests in the middle period of menstruation that can have some effect on the results, such as changes in hormone levels in the body, etc. The liver enzyme system and biochemistry in the body will also change accordingly, and the timing of the test should be indicated at this time. However, Hepatitis B V is mainly aimed at checking the hepatitis B virus and its antibody, which is not affected by the endocrine environment and physiological cycle of the body, so it is completely possible to draw blood for checking during the menstrual cycle.