How often are you supposed to get shots for tetanus?

Varies by age: Current cdc (center for disease control & prevention) recommendation for tetanus vaccination is as follow: initial series at 2, 4, and 6 months of age; booster vaccinations at age 4-5 years, 11 years, and every 10 years thereafter.

Age & exposure: Infants get them more often because their immunity takes time to build up. After 5 most will last 5-10 yrs depending on lifestyle. If you work in the garden a lot & may be exposed to tetanus spores or are playing sports & get a lot of cuts & scrapes, a 5yr boost may be prudent.

Once every 10 years: If you have had your childhood immunisation uptodate, 5 dpts upto age of 5 years and a tdap booster at 11 years.Than you only need a tdap booster every 10 years only.You need all three as there is resurgence of whooping cough lately in adults.