What is the main use of a Papanicolaou (Pap) test?

The Papanicolaou (Pap) test is primarily used to screen for cervical cancer in women. During this procedure, cells are collected from the cervix and examined microscopically for any abnormalities. The main goal of this screening test is to detect precancerous changes or cervical cancer in its early stages, which is critical since early detection significantly improves treatment outcomes.

While the other options might involve tests relevant in different contexts—such as testing for sexually transmitted infections, evaluating hormone levels, or assessing bone health—they do not relate to the specific purpose of the Pap test. The test is specifically designed to address issues concerning cervical health rather than other health domains.