Cervical cancer cell. Coloured scanning electron micrograph (SEM) of a cervical cancer cell. Due to genetic defects, cancer cells divide rapidly and chaotically, leading to a ragged appearance. Cells may clump together to form tumours, and invade and destroy surrounding tissues. Cancer of the cervix (the neck of the womb) is one of the most common female cancers. Regular smear tests allow the identification of pre-cancerous cells, which can be removed and destroyed. If the cancer is already established, surgery may be needed to remove the uterus.