The frequency of smear tests (cervical screening) depends on your age and country, but general guidelines are as follows:

• In the UK, for people aged 25 to 49, smear tests are typically done every 3 years.
• From ages 50 to 64, the interval extends to every 5 years.
• In Scotland and Wales, the interval is generally every 5 years from ages 25 to 64.
• Screening usually starts from age 25 or 21, depending on the guideline followed, and is not recommended below age 21 as cervical cancer risk is very low.
• After age 65, screening usually stops if there have been regular normal results; otherwise, it may continue if abnormal results have occurred.
• If a previous test shows abnormal cells or HPV positivity, more frequent screening may be advised.

Recent changes in screening now incorporate HPV testing, which is more accurate and allows safe extension of intervals to 5 years in many cases. It is important to respond to invitations for screening or ask your healthcare provider if unsure about when you should have your next test based on your personal health history.