Cut your finger, need a tetanus shot

Written by Liu Huan Huan

General Surgery

Updated on February 27, 2025

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The key is to assess the severity of the finger cut. If it's just a superficial skin scratch, then the wound is shallow, and it only requires disinfection with agents like iodophor or alcohol; there's no need for a tetanus shot. Conversely, if the cut on the finger is deep, such as reaching the subcutaneous fat or, in severe cases, the muscle layer, such deep wounds can easily lead to the growth and reproduction of tetanus bacillus, producing toxins and causing clinical symptoms in patients. Therefore, in such cases, it is recommended that patients go to the hospital to receive a tetanus antitoxin injection.

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Written by Xu Jun Hui

General Surgery

58sec

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Which department should I go to at the hospital for a tetanus shot?

Tetanus shots should be administered at a regular hospital in the emergency department. There are two types of tetanus injections: one that requires a skin test, called tetanus toxoid, and one that doesn't require a skin test, called tetanus immunoglobulin. It is generally recommended to get the tetanus shot within 24 hours of injury, and it is best to avoid alcohol before the injection. Drinking can cause dilation and reddening of the skin's capillaries, which can affect the results of the tetanus skin test. Tetanus is usually caused by the invasion of Clostridium tetani into the body, a type of anaerobic bacterium. Thus, for wounds that are small, deep, and heavily contaminated, such as with dirt, rust, or in cases of open fractures, anti-tetanus treatment is essential, and a tetanus shot can be administered in the hospital's emergency department.

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Written by Tang Da Wei

General Surgery

54sec

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Will a tetanus wound heal?

Tetanus wounds do not heal, and they contain a large amount of tetanus bacilli, which reproduce massively, leading to symptoms such as redness, pain, and even pus discharge in the affected area. Generally, these wounds cannot heal by themselves; even if the skin heals, the underlying and muscle tissues infected by tetanus can cause the skin to rupture and possibly accumulate pus. If a superficial wound is suspected to be infected with tetanus, it is necessary to promptly enlarge the wound, i.e., expand the surface wound, and rinse repeatedly with hydrogen peroxide and clean water to further kill the tetanus bacilli inside. At the same time, it is necessary to administer tetanus antitoxin, regularly observe the patient's clinical manifestations, and if necessary, administer tetanus antitoxin again after a period.

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Written by Zhang Da Wei

General Surgery

44sec

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What department is the tetanus shot in?

Tetanus bacillus is actually a relatively common bacterium, usually caused by traumatic injuries, and is commonly encountered in daily life. Tetanus is an acute disease caused by the tetanus bacillus, and this disease must be managed through preventive measures. When injuries or wounds occur, it is very important to get a tetanus shot, which can usually be administered at a surgical department, allowing for immediate care in such emergencies. This disease is generally quite dangerous, so administering the tetanus vaccine within 24 hours is considered safer. Of course, depending on the specific timing, one could also visit the emergency department to get a tetanus shot urgently, which can also be effective in treatment.

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Written by Sun Ming

General Surgery

36sec

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Why is tetanus given three times?

Tetanus is often derived from horse serum, which is a heterologous protein that many people might be allergic to. This is why a sensitivity test is done before administering tetanus shots; a positive allergy test indicates the presence of this antigen in your body, which can lead to an allergic reaction. To prevent such allergic reactions, desensitization is performed through intramuscular injections, which means administering the tetanus vaccine in three separate doses. This approach helps avoid allergies or even severe anaphylactic shock that might occur from the tetanus shot.

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Written by Zhang Peng

General Surgery

59sec

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What are the circumstances in which a tetanus shot should not be administered?

Tetanus is a strict anaerobic bacterium. Clinically, for deeper contaminated wounds, especially those contaminated by soil or punctured by rusty iron objects, an active injection of tetanus vaccine is recommended. Generally, for superficial scratches or clean and shallow wounds, as long as proper wound cleaning is performed, it is usually not necessary to administer a tetanus shot. For patients who have completed a full course of immunization or booster immunization within the last ten years and have high antibody levels in the body, if the wound is small, superficial, and free of foreign bodies or necrotic tissue residue, it is not necessary to inject the tetanus vaccine. For wounds that are larger, deeper, and heavily contaminated, with substantial residues of foreign bodies and necrotic tissue, or in cases where thorough wound cleaning is not achievable, an enhanced injection of tetanus antitoxin or immunoglobulin should be administered.