HPV testing involves the detection of human papillomavirus (HPV), a common sexually transmitted infection that can cause cervical cancer and other types of cancers. There are different methods of HPV testing, including Pap smear tests, HPV DNA tests, and HPV RNA tests. These tests are used to screen for HPV infection, monitor the progression of the virus, and guide treatment decisions. HPV testing is an important tool in cervical cancer prevention and early detection.