Squamous cells from the cervix - looking at them under the microscope and they're looking at the cell. Nowadays, they can do it thru computer, no longer under the microscope. It is actually a pre-cancerous. They need to see if it looks abnomal. You don't have to know the details but they look very werid. You can have abnormal cells of unknown significance. Low grade, high grade and then canceous. There are other scoring systems too.

Low grade is not as bad as high grade.

If they look at the cells, they're normal. We're trying to determine if it's normal or not. There are various factors. Shapes of the cells. It's not black and white. It's not on and off. There's gradient from normal to abnormal. There's structure scoring system