OG35.15,OG36.3 | Pap Smear and Cervical Punch Biopsy — Summary & Reflection

KEY TAKEAWAYS

The Pap smear and cervical punch biopsy are the cornerstone procedures of cervical cancer prevention and diagnosis. The Pap smear (cytology) is a population-level screening tool that detects pre-invasive cellular changes; it must sample the transformation zone using the Ayre spatula (ectocervix, 360°) and endocervical brush (90-180° rotation, rolled onto slide), with immediate fixation within 30 seconds. Results are reported using the Bethesda 2014 system; HSIL, ASC-H, and AGC all require prompt colposcopy referral. Cervical punch biopsy (histology) is a diagnostic procedure directed at colposcopically visible lesions identified after acetic acid application; the Tischler forceps deliver a 3-5 mm core which must be placed in 10% formalin, not saline. CIN is graded 1-3 by depth of epithelial involvement, with CIN 3 at highest risk of progression to invasion. The most common cause of false-negative cytology is sampling error — missing the transformation zone. After punch biopsy, Monsel's solution controls bleeding and patients should avoid intercourse and tampons for 2 weeks. Simulation practice on models builds procedural competency before supervised patient procedures.

REFLECT

Reflect on a Pap smear you observed or performed in the skills laboratory. What specific aspect of the technique was most difficult — speculum insertion, spatula rotation, fixation timing, or specimen labelling? Consider why cervical cancer screening uptake in India remains low despite a simple and effective test. What barriers (patient awareness, provider access, cultural factors, healthcare infrastructure) do you think contribute most, and how might you address these as a future clinician working in a primary health centre setting? If you were training a junior colleague on punch biopsy, how would you explain the difference between directing the biopsy forceps at the 'worst' acetowhite area versus sampling from multiple quadrants?