What is a Smear Test? How is it Done and How to Interpret the Results?

A smear test (Pap smear) is a vital screening method used to detect cellular changes in the cervix before they turn into cancer. Taking only a few minutes during a gynaecological examination, this procedure minimises the risk of cervical cancer. Thanks to early detection, potential cellular abnormalities can be easily treated, preventing serious health issues.

• It is the most fundamental medical method used for cervical cancer screening.
• The procedure takes an average of 1-2 minutes and is generally painless.
• It is recommended at regular intervals for every sexually active woman starting from age 21.
• You should avoid sexual intercourse and vaginal douching for 48 hours before the test.
• When combined with an HPV test, the screening’s protective value and reliability increase.

What is a Smear Test and Why is it So Important?

The Pap smear test involves collecting cells shed from the cervix—the lower part of the uterus that opens into the vagina—and examining them under a microscope. The primary goal of this test is not necessarily to diagnose an existing cancer, but rather to catch abnormal cells (precancerous lesions) that have the potential to turn into cancer in the coming years, while they are still at the very beginning of their journey. Cervical cancer is a disease that often progresses silently in its early stages without showing any symptoms. Through regular screenings, these invisible cellular changes are detected, and cancer development is completely prevented with simple interventions.

Cervical cancer, one of the leading gynaecological diseases where early diagnosis saves lives, has become a preventable condition thanks to this simple swab test. Taking just five minutes of your time, this test is the strongest protective shield for your long-term women's health. Regular participation in screening programmes allows you to have full control over your gynaecological well-being.

The Relationship Between HPV and Cervical Cancer

Almost all cases of cervical cancer are primarily caused by the Human Papillomavirus (HPV) infection. While there are hundreds of different types of this sexually transmitted virus, high-risk strains like Type 16 and Type 18 disrupt the DNA structure of cells in the cervix, leading to cancer over time. Being infected with HPV does not mean a woman will immediately develop cancer; it typically takes a long time, such as 10 to 15 years, for the virus to cause damage at the cellular level.

This is where the smear test steps in, allowing us to spot the danger early during this long incubation and cellular change period. If you would like to gain a broader perspective on the subject, you can also review our article titled What is Cervical Cancer? Symptoms, HPV Vaccine, and Smear Test. Performing the HPV DNA test and Pap smear test together (co-testing) is considered the most reliable cervical cancer screening method in current medical approaches. Even women who have received the HPV vaccine must continue regular smear screenings, as the vaccine does not provide protection against all types.

How is a Smear Test Performed? A Step-by-Step Process

Many women hesitate to get examined because they do not clearly know the answer to how a smear test is done. The procedure is performed on a standard gynaecological examination table and is extremely straightforward. The doctor gently inserts a medical instrument called a speculum into the vagina to see the cervix clearly. Then, using a soft-tipped thin brush (cervical brush) or spatula, they collect cell samples by lightly swabbing the cervix.

These collected cells are either placed into a special liquid-filled container (liquid-based cytology) or directly onto a glass slide and sent to the pathology laboratory. This entire process takes only a minute or two. The answer to one of the most frequently asked questions by patients—does a smear test hurt?—is quite reassuring. You may feel a slight pressure during the insertion of the speculum or the contact of the brush, but this is certainly not described as a sharp pain or ache. Taking deep breaths and relaxing your pelvic muscles will make the procedure much more comfortable.

Things to Consider Before the Test

For the smear test to provide accurate and reliable results, there are some simple rules the patient must follow before the procedure. First, you should schedule your appointment for a time when you are not menstruating (having your period). Blood cells can obscure the visibility of the epithelial cells taken from the cervix under the microscope, leading to misinterpretation or an inadequate test. The ideal timing is between the 10th and 20th days after the end of your menstrual bleeding.

It is highly important to avoid sexual intercourse for 48 hours prior to the test. Additionally, during these last two days, you should not douche, use vaginal tampons, suppositories, creams, or spermicidal gels. Such chemicals and interventions can wash away or cover the existing cell structure in the cervix, potentially hiding any abnormalities. If you have a severe vaginal infection or heavy discharge, your doctor may recommend completing the infection treatment before performing the test.

What Does a Smear Test Result Mean? (ASCUS, LSIL, HSIL)

The smear test result from the laboratory can sometimes contain complex medical terms for patients. A Negative result indicates that no cancer or precancerous changes were found in the examined cells, meaning everything is normal. However, abnormal findings can sometimes be encountered. ASCUS (Atypical Squamous Cells of Undetermined Significance) indicates a mild abnormality in the cells, but it is unclear whether this is a precancerous lesion or simply caused by an infection. In this case, an HPV test is usually requested, or the smear is repeated after a while.

LSIL (Low-Grade Squamous Intraepithelial Lesion) shows that mild structural deterioration has begun in the cells; it is usually caused by HPV and has a high chance of being cleared naturally by the immune system. HSIL (High-Grade Squamous Intraepithelial Lesion), on the other hand, indicates that the deterioration in the cells is moderate to advanced, and the risk of turning into cancer is considered high. In the case of HSIL or persistent LSIL results, a colposcopy (examining the cervix with a special microscope) and, if necessary, a biopsy are planned without delay.

Who Should Get Screened for Cervical Cancer and How Often?

Medical guidelines recommend that every sexually active woman over the age of 21 be included in a cervical cancer screening programme. For women between the ages of 21 and 29, having a Pap smear test every 3 years is considered sufficient if their results are normal. Since HPV infections are generally temporary in this age group, routine HPV screening may not always be recommended.

For women between the ages of 30 and 65, the most ideal approach is to have an HPV test alongside the smear test. When both tests are done together and the results are negative, the screening interval can be extended to 5 years. If only a smear test is to be performed, repeating it every 3 years is appropriate. Women over the age of 65 can exit the screening programme with their doctor's approval if they have had regular screenings in the past 10 years and have consecutively received normal results. If the uterus or cervix has been completely removed for benign reasons, your doctor will decide whether to continue routine screening based on your medical history.

When to See a Doctor and What Are the Emergencies?

Even if it is not time for your routine screening, you should see an obstetrician and gynaecologist without delay if certain symptoms related to the cervix or reproductive system arise. Bleeding after sexual intercourse (postcoital bleeding), spotting between two menstrual periods, or any vaginal bleeding that starts after menopause are warning signs that must absolutely be taken seriously.

In addition, foul-smelling, meat-broth-coloured, or unusually heavy vaginal discharge, as well as persistent, unexplained pain in the lower abdomen (pelvic area), require medical attention. If you experience sudden, unbearable pelvic pain, if your vaginal bleeding is very heavy (enough to require changing more than one pad in an hour), or if these symptoms are accompanied by a high fever, dizziness, and a feeling of fainting, you should immediately call the 112 emergency helpline or visit the nearest hospital's emergency department.

Gynaecological Screening and the Process at BHT CLINIC

At the BHT CLINIC İstanbul Tema Hastanesi Obstetrics and Gynaecology department, all gynaecological screenings aimed at protecting women's health are performed at international quality standards. Our expert medical staff finalises procedures like smear tests and HPV screenings in the fastest and most reliable way, supported by our state-of-the-art laboratory infrastructure.

Bringing any previous smear, HPV, or ultrasound results with you when you come to our hospital ensures a more accurate evaluation of your medical history. In the event of a possible abnormal result, advanced diagnostic methods such as colposcopy and biopsy are planned under the same roof by our experienced physicians. In situations requiring urgent intervention, such as severe bleeding or acute pelvic pain, our 24/7 emergency department and on-duty specialist teams are always by your side.

Frequently Asked Questions

How many days does it take for a smear test result to come out?

The turnaround time for smear test results varies depending on the laboratory's workload and the method used. Generally, the results of samples taken with liquid-based cytology methods are reported and communicated to the patient within 3 to 7 working days.

Does a smear test hurt?

No, the procedure is generally painless and does not require anaesthesia. You may only experience a slight feeling of pressure or friction when the speculum is inserted into the vagina and the cells are collected with the brush during the examination.

Is a smear test performed on virgins?

Because a smear test requires inserting a speculum into the vagina to reach the cervix, it can damage the hymen. Therefore, it is not routinely performed on individuals who have not had sexual intercourse before; however, in very rare medical necessities, different examination methods may be followed under a doctor's evaluation.

Can a smear test be done during pregnancy?

Yes, it is safe to have a smear test, especially in the early weeks of pregnancy, if it is time for the mother's routine screening. The procedure does not harm the baby or the course of the pregnancy, and it does not cause a miscarriage.

Can a smear test be given while menstruating?

Because the sample taken from the cervix during menstruation will contain a high amount of blood cells, a microscopic examination cannot be performed properly. For this reason, it is preferred to do the test on days when the bleeding has completely stopped.

To avoid postponing your health and to get your regular gynaecological screenings done, you can easily plan your visit using the BHT CLINIC İstanbul Tema Hastanesi appointment system.

This article is for informational purposes only; please consult your doctor for diagnosis and treatment.