The side effects of tetanus vaccination mainly include the following: a. Some people may experience cold-like symptoms such as runny nose, fever, malaise and lethargy after tetanus vaccination. This is due to the discomfort caused by the immune response of the body after tetanus vaccination, which can be relieved by rest and drinking more water. Second, the more serious side effect is that a small number of people may suddenly develop symptoms of shock such as weakness, irritability, depression, drop in blood pressure, and fine pulse within half an hour to one hour of tetanus vaccine injection. If not rescued in time may cause life-threatening, after the injection of tetanus vaccine, you need to observe at the scene for half an hour, if the period does not matter indicates that there will not be much reaction. After the tetanus vaccination, pay attention to a light diet, less spicy and stimulating food, and pay attention to rest.