Sometimes pap smears can have false readings. False readings can happen for a variety of reasons: cell sampling, slide preparation or misinterpretation. However, pap smear tests are pretty accurate and false readings are rare. Ask your doctor when your results come back if you have further concerns. Sometimes repeat pap smears are set up as well.
New technology is being developed to increase the accuracy of pap smears. Currently, scientists are creating a new version--a liquid pap smear. This pap smear will still collect the cells with a cotton swab, but the cells will then be rinsed in a bottle of liquid preservative.
This sample will allow for a more even layer of cells on the slide. Doctors have already started carrying this new pap smear test. If you're interested, call your gynecologist before your appointment and ask. The only downside is that it usually is more expensive and you may have to pay the difference between what your insurance covers and the cost of the exam.