The NHS cervical screening programme invites women from age 25 to 64 for cervical screening. You get an invite every 3 years if you are aged 25 to 49. After that, you get an invite every 5 years until the age of 64. You need to be registered with a GP to get your screening invitations.
Cervical screening is also for anyone within this age range who has a cervix, such as trans men and non-binary people. You can talk to your GP about this or visit Trans and non-binary cancer screening | Cancer Research UK for more information.