If you get an anti tetanus shot how long does it last? I mean how long before you have to take another one?

Tetanus Shot. A series of shots are given during childhood, but thereafter a booster shot is needed every 10 years, but as a practical matter, when I see people in the urgent care center with wounds or punctures, I recommend a booster if they cannot remember when they last had a booster. Better to be safe than sorry. .