What this test measures
Sampling brush is rinsed into a vial of preservative fluid (ThinPrep or SurePath), then processed in the lab to produce a thin, even monolayer of cells on a slide. Same Bethesda 2014 categories as conventional Pap. Major advantages: fewer unsatisfactory smears (better cell preservation), reflex HPV testing from the same vial, and improved sensitivity for high-grade lesions.
Why it matters
LBC is the cytology standard in most well-resourced Indian settings (corporate hospitals, urban diagnostic centres) and is increasingly used in public-sector screening. WHO's shift toward HPV-primary screening has reduced the role of cytology, but LBC + reflex HPV testing remains a common combined screening approach. Better quality samples + same-vial HPV testing = fewer repeat visits and improved screening uptake.
How to prepare
Same as conventional Pap — avoid intercourse, vaginal medications, douching, tampons for 48 hours before. Schedule outside menstrual period (mid-cycle ideal). Disclose pregnancy and menopausal status.
Markers & reference ranges
Reference ranges below are typical adult values. Your lab's reported range may differ slightly based on the assay platform and patient demographics — always read your report against the range printed on it.
| Marker | Normal range | If low | If high |
|---|---|---|---|
| LBC Result (Bethesda category)[1] | NILM | NILM — re-screen in 5 years if co-tested with HPV (negative). | ASC-US — reflex HPV from same vial (key advantage of LBC); LSIL — colposcopy; HSIL — colposcopy + LEEP. Same management as conventional Pap. |
LBC vs conventional Pap
| Feature | Conventional Pap | LBC |
|---|---|---|
| Unsatisfactory rate | 5-10% | 1-2% |
| Sensitivity (HSIL) | 50-70% | 70-85% |
| Reflex HPV from same sample | No (separate swab needed) | Yes |
| Cost | Lower | Higher |
| Sample preservation | Air-dried smear | Liquid fixative |
Frequently asked questions
Should I get LBC or conventional Pap?
LBC is preferred where available — fewer unsatisfactory smears, better sensitivity, and reflex HPV from the same vial. Conventional Pap is cheaper and remains acceptable in resource-limited settings.
What is reflex HPV?
If the LBC shows ASC-US, the lab can run HPV testing on the same vial without a return visit. HPV-positive ASC-US → colposcopy. HPV-negative ASC-US → re-screen at usual interval.
Does LBC replace HPV testing?
No — they're complementary. WHO now recommends HPV testing as primary screen in many settings. LBC is most useful as: (a) primary cytology in settings without HPV testing, (b) triage of HPV-positive women, or (c) co-test with HPV.
Will my Pap smear from a previous test be comparable?
Yes — both use Bethesda 2014 categories. Direct numerical comparison isn't made, but classification is consistent.
How often?
Every 5 years with HPV co-testing, or every 3 years with cytology alone, for women 21-65.
Related Histopathology / Cytology tests
Tests commonly ordered alongside LBC CERVICAL SMEAR, or that help interpret an unexpected result.
Sources & references
- WHO — Cervical Cancer Screening · accessed 2026-05-30T00:00:00.000Z
- Bethesda 2014 Cervical Cytology · accessed 2026-05-30T00:00:00.000Z
- FOGSI — Cervical Screening · accessed 2026-05-30T00:00:00.000Z
- ICO/IARC — India Cervical Cancer · accessed 2026-05-30T00:00:00.000Z
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