Health's Book

Definition

Cervical dysplasia is the abnormal growth of cells on the surface of the cervix. Although this is not cancer, it is considered a precancerous condition.

Cervical dysplasia is grouped into three categories:

* CIN I -- mild dysplasia (only the lower one-third of cells in the upper layer of the cervix are abnormal)
* CIN II -- moderate to marked dysplasia (up to two-thirds of the layer contains abnormal cells)
* CIN III -- severe dysplasia to carcinoma in situ (precancerous cells are in the entire top layer of the cervix)

Symptoms

There are usually no symptoms.