Sheffield GPs are using Cervical Screening Awareness Week to urge women to attend appointments.
All women between 25 and 64 are invited for regular tests.
Dr Marion Sloan, a GP and NHS Sheffield Clinical Commissioning Group’s governing body member, said: “Being screened regularly means that any abnormal changes in the cells of the cervix can be identified at an early stage and, if necessary, treated to stop cancer developing.
“Any type of medical testing can be daunting, but a cervical screening test is a prime example of how a quick, painless test can save your life.
“Unfortunately, research shows that one in five women in England are not attending their cervical screening.”
Women between 25 and 49 are invited for testing every three years, and women aged between 50 and 64 are invited every five years.
All girls aged 12 to 13 are now offered a human papilloma virus vaccination to protect against cervical cancer as part of the NHS childhood vaccination programme