What should you know about a tetanus shot while pregnant?

A tetanus shot during pregnancy may be recommended when protection is needed after a wound or as part of pregnancy vaccination planning. The decision depends on the type of vaccine, your previous immunisation record, the wound, and local clinical guidance. Tell the clinician that you are pregnant before treatment.

Tetanus is caused by a toxin made by bacteria that can enter damaged skin, especially a deep, dirty, puncture, burn, or crush wound. Vaccination trains the immune system to recognise the toxin. Pregnancy does not automatically rule out vaccination, but the timing and product should be selected by a qualified clinician. A wound assessment may also include cleaning, removal of foreign material, and consideration of additional protection when indicated.

Rinse the wound with clean running water, cover it with a clean dressing, and arrange medical advice promptly if it is deep, contaminated, or caused by an object that pierced the skin. Bring any record of previous tetanus doses and mention allergies, immune conditions, medicines, and the stage of pregnancy. Do not delay wound care while searching for your vaccination history. A clinician can decide whether vaccination is appropriate and whether another preventive medicine is needed.

Seek urgent medical care for trouble breathing or swallowing, severe muscle stiffness or spasms, a rapidly worsening wound, uncontrolled bleeding, spreading redness, pus, fever, or severe pain. Tetanus symptoms can appear after an interval rather than immediately after an injury. If you have a concerning wound during pregnancy, contact an urgent-care service or maternity team for advice instead of waiting for symptoms.

Ask which tetanus-containing vaccine is being considered, whether your previous doses change the plan, how the wound should be monitored, and which pregnancy symptoms should prompt a call. You can also ask how vaccination fits with your antenatal schedule and what to do if your records are unavailable.