The primary concern of your gynecologist during this test is to confirm the presence of the HPV virus?
May be some anomalies were detected in the results of the smear test and in this situation it is better to resort to a biopsy in order to check for any risk of cancer.
When did you do your last pap smear? Was it less than 2 years ago? Then the risks of having a cancer are quite small or at worst if any cancer is detected, it will most likely to be at an early stage and there exists appropriate treatments to handle this issue.