What STDs can a Pap smear detect?

Written by s.e. brinamon
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What STDs can a Pap smear detect?
Smear tests can detect STDs as well as cervical cancer. (shansekala/iStock/Getty Images)

Pap (Papanicolaou) smears test cells for indications of cervical cancer, but a few sexually transmitted diseases may also be detected in abnormal smear results. Abnormal results are often unclear and require further testing to determine the cause.

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Human papillomavirus (HPV)

Since HPV is the virus linked to cervical cancer, HPV may be detected through a smear test. Pap smears can detect low-grade squamous intraepithelial lesions, which are slight cell changes caused by HPV infection.

Trichomoniasis

Trichomoniasis is the most common curable STD, and one of the most likely to be detected by a Pap smear. Smear tests show 60 per cent accuracy for detecting Trichomoniasis.

Chlamydia

Pap smears may detect Chlamydia if results show inflammation of the cells or if the cervix is noticeably inflamed.

Herpes

In rare cases, Pap smear results can reveal cells that have been damaged by a herpes infection. Visible sores from a herpes outbreak can be easily identified during physical exams.

Warning

Pap smears are not a reliable method for detecting STDs. Ask your GP or practice nurse for STD testing to ensure accurate results. This may involve a swab of cervical cells or a blood test.

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