A Pap Smear (also called cervical cytology or a “Pap test”) is a screening test that checks for abnormal changes in the cells of the cervix (the lower part of the uterus that opens into the vagina). During a routine gynecological exam, a clinician gently uses a small brush or spatula to collect cervical cells. The sample is then examined in a laboratory under a microscope (cytology) to look for cell changes that could become cancer over time.

The Pap smear does not diagnose cervical cancer by itself in every case, but it can detect pre-cancerous cells (often called dysplasia or precancer) and early cancer-related changes when treatment is most effective. Results are typically reported as:

Normal/Negative: No abnormal cervical cell changes seen. This generally means routine screening should continue at the recommended interval.

Abnormal: Some cervical cells look different from normal. Abnormal results are common and often do not mean cancer. Depending on the type of abnormality, your clinician may recommend repeat testing, an HPV test (for high-risk human papillomavirus strains linked to cervical cancer), or further evaluation such as colposcopy (a closer look at the cervix) and/or biopsy.

Unsatisfactory/Insufficient sample: Not enough cells were collected or the sample couldn’t be interpreted (for example, due to blood or inflammation). The test may need to be repeated.

A Pap smear is most often done as part of routine women’s health and health screening to support early detection of cervical cell changes before they develop into cancer. Many people with early cervical changes have no symptoms, which is why regular screening is important.

Your clinician may recommend cervical cytology based on age and screening guidelines, and may also suggest additional testing (like HPV testing) depending on your history. It may be ordered or emphasized more strongly if you have risk factors such as:

Higher risk for HPV exposure: New or multiple sexual partners, a partner with multiple partners, or a history of sexually transmitted infections. (While a Pap smear is not the same as STD screening, it is often performed during the same visit as STI/STD tests.)

Past abnormal Pap or HPV results: Prior abnormal cervical cytology or positive high-risk HPV may require closer follow-up.

Weakened immune system: Conditions or medications that suppress the immune system (for example, HIV infection or long-term immunosuppressive therapy) can raise the risk of persistent HPV infection and cervical cell changes.

Smoking: Smoking is associated with a higher risk of cervical dysplasia and cervical cancer.

History of cervical pre-cancer or cancer: People treated for high-grade lesions may need more frequent surveillance.

Your doctor may also evaluate cervical health if you have certain symptoms, although these symptoms are more often investigated with additional exams and tests rather than Pap smear alone. Symptoms that should prompt medical evaluation include abnormal vaginal bleeding (after sex, between periods, or after menopause), unusual vaginal discharge, pelvic pain, or pain during sex.

• Cervical cancer (screening and early detection)
• Cervical dysplasia (pre-cancerous cervical cell changes)
• HPV-related cervical changes (high-risk human papillomavirus effects on cervical cells)
• Squamous intraepithelial lesions (LSIL/HSIL)
• Atypical squamous cells (ASC-US, ASC-H)
• Atypical glandular cells (AGC)
• Cervicitis/inflammation (may affect results and require follow-up)

• Supporting routine women’s health and preventive gynecologic care
• Early detection of cervical cancer to improve treatment outcomes
• Identifying and monitoring pre-cancerous cervical cell changes before they progress
• Guiding next-step testing (e.g., HPV testing, colposcopy) after abnormal screening results
• Maintaining long-term cervical health through regular health screening