Pap Test Abnormal Result? Understanding HPV & STDs in Women

An abnormal Pap test (cervical cytology) most commonly indicates HPV (human papillomavirus) infection. HPV causes >99% of cervical cancers and precancerous lesions.

HPV & Pap Testing

• Pap test: Detects cellular abnormalities (ASC-US, LSIL, HSIL, AGC, cancer).
• HPV test: Detects high-risk HPV DNA/RNA (types 16, 18, 31, 33, 45, 52, 58, etc.).
• Co-testing: Pap + HPV together (preferred 30–65 yrs).

Abnormal Result Categories & Management

Result	Meaning	Typical Next Step
ASC-US	Atypical squamous cells, undetermined significance	Reflex HPV test; if HPV+, colposcopy
LSIL	Low-grade squamous intraepithelial lesion (HPV effect)	Colposcopy (age 25+) or repeat in 12 mo (21–24)
HSIL	High-grade SIL (precancer)	Colposcopy + biopsy
ASC-H	Atypical squamous cells, cannot exclude HSIL	Colposcopy
AGC	Atypical glandular cells	Colposcopy + endocervical sampling ± endometrial biopsy

Other STDs & Pap

• Trichomonas, Candida, HSV, Actinomyces: May be incidentally seen on Pap but not primary screening.
• Chlamydia/Gonorrhea: Require NAAT (swab/urine), not Pap.
• Syphilis/HIV: Serology.

HPV Vaccination

Gardasil 9 (9-valent) covers 7 high-risk + 2 low-risk types. Recommended 9–26 yrs (shared decision 27–45). Prevents 90% cervical cancers.

Key Points

• Abnormal Pap ≠ cancer. Most regress; few progress over years.
• HPV is necessary but not sufficient for cervical cancer.
• Follow guidelines for surveillance. Overtreatment of young women causes cervical incompetence.
• Partner notification for STDs; expedited partner therapy where legal.

An abnormal Pap is a call for further evaluation, not panic. Modern screening prevents cancer effectively.