In general, women can take vaccines during menstruation if their bodies do not have obvious uncomfortable reactions. Most of the vaccines listed in China have been medically treated and are relatively safe for the human body, have no obvious abnormal effects on the bodies of menstruating women, and usually have no effect on the results. However, since women may not be in the best physical condition during menstruation, it is recommended to avoid vaccination during menstruation as much as possible for insurance purposes. In general, when women are menstruating, due to changes in estrogen and progesterone in the body, the susceptibility of the female organism may increase to a certain extent and resistance may be reduced, making it vulnerable to viruses. Most vaccines are treated attenuated or inactivated vaccines, and although they are safe, vaccination at this time may increase the probability of adverse reactions such as fever, dizziness, and pain at the injection site, so women are advised to avoid menstruation as much as possible when receiving vaccines. If force majeure factors are encountered, such as being scratched and needing rabies vaccination, the vaccine must be given during menstruation. After the injection, you should pay more attention to observe your body condition and seek medical attention if there is any serious discomfort abnormalities. If a woman has other discomforts or conditions during her menstrual period such as fever, acute phase of diseases such as cold, acute attack of chronic diseases, or allergy to the ingredients of the vaccine injected, she should not have the vaccine to avoid allergic and other adverse reactions, which may lead to serious consequences.