What STD is diagnosed in women on the basis of an abnormal Pap test?

The STD that is diagnosed in women on the basis of an abnormal Pap test is Human papillomavirus (HPV). HPV is a common STD that can cause abnormal cell changes in the cervix. An abnormal Pap test can be a sign of HPV, and further testing may be necessary to confirm the diagnosis and determine the next treatment steps.