ThinPrep cervical cytology test is a new test introduced in 1996, belonging to automated cytology or liquid based cytology technique, which has advantages over conventional cervical cytology test (PAP).

The conventional Pap smear method, with many studies showing that 80% of cells are discarded after smearing on the slide, increases the rate of missing abnormal cells. In addition, with the conventional Pap smear method, cells are not well preserved and the observed sample has a lot of mucus. The smear often has errors of thick smears, cells overlap each other. To overcome these limitations, in 1996 the US Food and Drug Administration (FDA) recognized the Liquid-based cytology (Thinprep) method as a method in cervical cancer screening.

Thinprep test (full name is Thinprep Pap) is a new step in medicine, thanks to this test, millions of women have escaped the "death sentence" of uterine cancer. So how often should the Thinprep test for cervical cancer be done?