Does a tetanus shot hurt?

Written by Gao Sen

General Surgery

Updated on April 07, 2025

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Tetanus shots are certainly painful, but why do they hurt? Firstly, because a skin test is needed for tetanus, which primarily involves injecting the drug under the skin of the forearm to form a small bump about 0.5cm in diameter. It is known that there are abundant nerve endings under the skin, so the injection of the drug can cause local swelling and compress the surrounding nerves, and the drug can also cause an irritation response in the surrounding nerves, which is why tetanus shots are painful.

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Written by Zhang Peng

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What should I do if I drink alcohol with tetanus?

If there are high risk factors for tetanus infection after an injury, and alcohol has been consumed, it is generally advisable to wait until sobriety before conducting relevant skin tests. Currently, there is no clear research on the relationship between alcohol consumption and an allergy to tetanus antitoxin. It is not very clear whether alcohol impacts the results of a skin test, so it is safer to perform the test after sobering up. Since the consequences of a tetanus infection can be severe, and the tetanus injection itself carries a certain risk of anaphylactic shock, which can lead to multiple organ problems and even be life-threatening, it is generally safer to conduct the skin test after sobering up and then proceed with the timely injection treatment. If the skin test is positive, tetanus immunoglobulin should be chosen promptly.

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Does tetanus hurt?

Generally speaking, receiving a tetanus shot can be painful. If there is a suspicion of infection with tetanus bacillus, it is necessary to go to the hospital to obtain tetanus antitoxin. A skin test must be performed before the injection, and the routine skin test is usually done on the inner front wall. Naturally, when the skin test needle is injected into the skin, the pain will be quite apparent. If the skin test result is negative, the tetanus antitoxin can be injected into the muscle, which may also cause pain and discomfort. If the skin test is positive, tetanus immunoglobulin, which does not require a skin test, needs to be administered. Typically, if a person has a relatively small but deep wound, particularly one caused by rusty and dirty objects, there might be a risk of infection by tetanus bacillus. In such cases, it is advisable to get the tetanus injection at the hospital as soon as possible, ideally within 12 hours.

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Can you get tetanus if there's no rust?

For patients, if a wound occurs without rusting, there is still a possibility of tetanus. This is because if the wound is deep, it can lead to an infection by anaerobic bacteria. Therefore, it is recommended to go to the surgical department for thorough debridement and disinfection as soon as possible. At the same time, pay attention to resting, keeping the wound clean and dry, changing dressings on time, and taking oral antibiotics if necessary, such as cephalosporins, to prevent infection. Generally, with good control, recovery will be quick. However, tetanus can still occur, so it is still necessary to pay attention. Afterwards, keep the wound clean and dry, be mindful of your diet, avoid spicy and irritating foods, and follow up with your doctor.

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Is tetanus painful?

Tetanus is a specific infectious disease in surgery, caused by the exotoxin of Clostridium tetani. Tetanus infection can lead to rigid muscle spasms, which is a disease with a high mortality rate. Although its treatment is difficult, the prevention is effective, so tetanus infections can be avoided by vaccinating with the tetanus vaccine. The tetanus shot includes human tetanus immunoglobulin and tetanus antitoxin serum. The injection of human tetanus immunoglobulin is administered via muscle and is not very painful, generally tolerable. The injection of tetanus antitoxin serum, being a foreign protein to the body, requires an initial sensitivity test. The pain is evident, as the sensitivity test involves a skin prick.

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How long does a tetanus shot last?

The duration of effectiveness for a tetanus shot depends on the specific type of injection used, as different injections vary in their duration of protection. Generally, the protection lasts about two to three days. In cases of infection, it is usually necessary to administer the vaccine within 24 hours. Under these circumstances, a period of about two to three days can be used to clean the wound, thereby achieving the best preventive effect. Additionally, there are other vaccines that are ten to twenty times more effective than this type of vaccine, with a typical prevention time ranging up to 15 days or even about a month. Of course, after receiving the tetanus vaccine, it is important to monitor for any allergic reactions, as different injections may vary in their degree of allergenicity, and individual reactions can differ based on personal health conditions.