Understanding Your Pap Smear Report: Plain-Language Guide to Every Result
Clinician takes Pap smear cell sample with brush from patient sitting in a gynecological exam chair.
A Pap smear result letter or report arrives with terminology that most women cannot interpret without medical training. Seeing words like "ASCUS" or "LSIL" or "high-grade changes" triggers immediate anxiety — often disproportionate to what the finding actually means.
Dr. Shachi Singh, consultant gynaecologist at Prakash Hospital, Sector 33, Noida, translates every Pap smear result category into plain language.
What a Pap Smear Tests
A Pap smear (also called a cervical smear or Pap test) collects cells from the cervix — specifically from the transformation zone where the two types of cervical cells meet. A cytopathologist (laboratory doctor) examines these cells under the microscope for:
- Abnormal cell changes (dysplasia) that may indicate a precancerous condition
- Evidence of HPV-related cellular changes
- Signs of infection or inflammation
The Bethesda System: How Results Are Classified
India uses the Bethesda system for classifying Pap smear results — the same system used globally.
NILM — Negative for Intraepithelial Lesion or Malignancy
What it means: Normal. No abnormal cells found. Your cervix looks healthy on this smear.
What to do: Continue routine screening on schedule — every 3 years (Pap smear alone) or every 5 years (Pap smear plus HPV test).
Note: NILM does not mean zero cervical cancer risk forever — it means the cells sampled at this examination were normal. Regular screening continues.
ASCUS — Atypical Squamous Cells of Undetermined Significance
What it means: The squamous cells (the flat cells on the outer cervix) look slightly unusual — but not unusual enough to be classified as low-grade or high-grade changes. "Undetermined significance" is honest — the pathologist is saying "something is mildly off but I cannot classify it precisely from these cells."
ASCUS is the most common abnormal Pap result — and the one that causes the most unnecessary anxiety. The majority of ASCUS results are caused by HPV infection that the immune system will clear on its own.
What to do: HPV reflex testing — if HPV testing was not done with the smear, it should be done now. If HPV-negative: repeat Pap in 12 months. If HPV-positive (high-risk type): refer for colposcopy.
LSIL — Low-Grade Squamous Intraepithelial Lesion
What it means: Low-grade abnormal cell changes — corresponding to mild dysplasia or CIN 1. These are cells showing the cellular changes of active HPV infection. The majority of LSIL/CIN 1 regresses spontaneously as the immune system clears the HPV infection.
What to do: Colposcopy is typically recommended. If colposcopy confirms CIN 1, active surveillance (repeat smear at 12 months) rather than immediate treatment is appropriate in most cases.
HSIL — High-Grade Squamous Intraepithelial Lesion
What it means: High-grade abnormal cell changes — corresponding to CIN 2 or CIN 3 (moderate to severe dysplasia). These are significant pre-cancerous changes that require colposcopy and biopsy, and usually treatment (LEEP/LLETZ).
HSIL does NOT mean cancer. It means pre-cancerous cells that can be treated before cancer develops — this is exactly what cervical screening is designed to detect.
What to do: Urgent referral for colposcopy. Biopsy to confirm grade. Treatment (LEEP/LLETZ) typically recommended for CIN 2 and CIN 3.
ASCUS-H — Atypical Squamous Cells, Cannot Exclude HSIL
What it means: Atypical cells that are worrying enough to raise concern about high-grade changes but cannot be confirmed without further investigation. Managed as HSIL — colposcopy.
AGC — Atypical Glandular Cells
What it means: Abnormal glandular cells (the columnar cells of the cervical canal or endometrium). This result is less common than squamous cell abnormalities but requires careful investigation — glandular abnormalities can arise from the endocervix or the endometrium (uterine lining).
What to do: Colposcopy with endocervical sampling, and endometrial sampling (in women over 35 or those with risk factors). AGC needs thorough investigation even though it is not always pre-cancerous.
Unsatisfactory / Inadequate Sample
What it means: The sample did not contain enough cells from the transformation zone to allow a reliable assessment. The smear is not "normal" — it is inadequate. This is not an abnormal result, it is a technical issue (often related to timing of the smear, presence of infection or blood, or sampling technique).
What to do: Repeat the smear in 2 to 3 months, treating any infection present first.
HPV Co-Testing Results
Many Pap smears now include HPV co-testing. Results are reported as:
- HPV not detected: No high-risk HPV identified — very reassuring, lowest risk of pre-cancer
- HPV detected, type 16 or 18: The highest-risk HPV types — more urgent colposcopy referral regardless of the smear appearance
- HPV detected, other high-risk types: Intermediate risk — management depends on the Pap smear result
Gynaecological Care in Noida and Greater Noida
Dr. Shachi Singh at Prakash Hospital, Sector 33, Noida, performs Pap smears, explains results, and manages all grades of cervical abnormality — including colposcopy and LEEP/LLETZ — for women across Noida and Greater Noida.
To book a consultation with Dr. Shachi Singh, call: +91 97023 46853
Clinic Hours: Monday to Saturday, 9 AM – 6 PM | Sunday, 10 AM – 2 PM
Clinic Address: D-12A, 12B, Sector-33, G.B. Nagar, Noida, Uttar Pradesh 201301
This blog is for educational purposes only. Always discuss your Pap smear result with your gynaecologist.
