After a woman has a TCT test, if the amount of cells is simply greater than 40%, there is often no problem, because this represents a cervical TCT is taken when there are obvious cells in the TCT small brush, and the cervix itself will have cell shedding, so it is a normal problem. However, if the TCT suggests that the amount of abnormal cells is greater than 40%, then there may be a problem at this point, most commonly there is inflammatory stimulation leading to cellular changes, or there is cervical intraepithelial neoplasia caused by high-risk HPV infection, or even cervical cancer present. Therefore, in order to further confirm the diagnosis, a cervical biopsy under colposcopy is often recommended.