Vaccination can be given when a woman is on her period and will not affect the effectiveness of the vaccine. However, because the body’s resistance decreases at this time, vaccination may have certain effects, so it is usually not recommended for women to receive the vaccine during their period and they can consider postponing the vaccination. It is usually considered that the endometrium sheds and bleeds during menstruation, and the cervical opening dilates, which makes it easy for germs to invade, thus causing a decrease in immunity and weakening of the body’s defense function during menstruation, making it easy for women to get bacterial or fungal infections and local inflammation. At the same time, the body needs to be observed for any adverse reactions during the period after vaccination. If female patients have symptoms such as cough, fever, abdominal pain, etc. due to lower immunity, they are easily confused with adverse reactions after vaccination, which may cause misdiagnosis and delay the disease. Therefore, if a woman’s vaccination time coincides with her menstrual period, she can consult the medical staff if she needs to miss her period time. After vaccination, women should pay attention to maintaining good habits, avoiding alcoholic beverages for a week, and eating less or avoiding spicy and stimulating foods such as chili, hot pot, coffee, and strong tea. At the same time, keep the inoculation site clean and dry, keep warm, avoid overwork, regular work and rest, combine work and rest, and exercise appropriately to avoid being attacked by diseases.