Cervical Cancer Screening: Early Detection Saves Lives
Cervical cancer develops in the cervix, the lower part of the uterus that opens into the vagina. The most important cause is persistent infection with high-risk types of Human Papillomavirus, known as HPV. The encouraging fact is that cervical cancer is one of the most preventable cancers through regular screening and HPV vaccination.
Why should I have cervical screening?
Because early cervical cancer often causes no symptoms. Screening can detect high-risk HPV infection or abnormal cervical cell changes before cancer develops. When precancerous lesions are found and treated early, progression to invasive cancer can often be prevented.
Which tests are used?
The main cervical screening tests are:
HPV test: This test looks for high-risk HPV types associated with cervical cancer. A negative HPV test usually means the risk of developing cervical cancer in the near future is low.
Pap test / Pap smear: This test examines cells collected from the cervix under a microscope. It helps detect precancerous cell changes and, sometimes, early cancer findings.
In some settings, HPV testing and Pap testing may be used together. The best screening method depends on age, previous test results, national guidelines and individual risk factors.
When should screening be done?
Screening recommendations vary between countries. In Türkiye, the national screening program recommends HPV-DNA testing every 5 years for women aged 30–65.
International guidelines may differ. Some recommend Pap testing from age 21, while others recommend HPV-based screening from age 25 or 30. The most appropriate schedule should be determined according to the person’s age, medical history, previous screening results and local screening program.
Does an HPV-positive result mean I have cancer?
No. A positive HPV test does not mean cancer. HPV infection is common, and many infections clear naturally through the immune system. However, persistent infection with high-risk HPV types can lead to precancerous changes in cervical cells. For this reason, an HPV-positive result should be followed up appropriately.
What symptoms should not be ignored?
Early cervical cancer may not cause any symptoms. When symptoms occur, they may include:
Bleeding after sexual intercourse
Bleeding between periods
Bleeding after menopause
Watery, bloody or foul-smelling vaginal discharge
Pelvic pain
Pain during sexual intercourse
In more advanced disease: back or leg pain, urinary problems or changes in bowel habits
These symptoms do not always mean cancer. Infections, polyps and other gynecological conditions can cause similar complaints. However, anyone with these symptoms should be evaluated by a gynecologist.
What happens if the screening result is abnormal?
An abnormal screening result does not automatically mean cancer. Depending on the result and previous history, the next step may include:
Repeat testing or closer surveillance: Mild abnormalities may only require repeat HPV testing or cytology after a defined interval.
Colposcopy: The cervix is examined using a special magnifying device. If suspicious areas are seen, a biopsy may be taken.
Biopsy: A small tissue sample is examined by a pathologist. This is the definitive way to diagnose precancerous lesions or cancer.
Treatment of precancerous lesions: High-grade lesions such as CIN 2 or CIN 3 may be treated with procedures such as LEEP, cone biopsy or, in selected cases, ablative treatment.
How is cervical cancer diagnosed?
A definite diagnosis is made by pathological examination of a biopsy taken from the cervix. After diagnosis, further evaluation is performed to determine the extent of disease. This may include pelvic examination, MRI, CT, PET/CT or other tests when needed. This process is called staging, and it guides treatment planning.
How is treatment decided?
Treatment depends on the stage of the disease, tumor size, lymph node involvement, the patient’s age and general health, fertility wishes and tumor characteristics.
Main treatment options include:
Treatment of precancerous lesions: LEEP, cone biopsy or ablative methods can remove abnormal tissue before cancer develops.
Surgery: In early-stage cervical cancer, options may include cone biopsy, simple or radical hysterectomy and lymph node assessment. For selected patients who wish to preserve fertility, fertility-sparing surgery may be considered.
Radiotherapy and chemotherapy: For locally advanced disease, radiation therapy is often combined with chemotherapy. Brachytherapy is an important component of cervical cancer radiotherapy.
Systemic treatments: In advanced, recurrent or metastatic disease, chemotherapy, targeted therapy and immunotherapy may be used in selected patients.
Treatment decisions should ideally be made by a multidisciplinary team including gynecologic oncology, radiation oncology, medical oncology, radiology and pathology specialists.
Why is follow-up important after treatment?
Regular follow-up after treatment helps detect recurrence early, manage treatment-related side effects and support sexual health, menopause care, fertility concerns, urinary and bowel function and overall quality of life.
Follow-up may include:
Regular pelvic examination
Review of symptoms
Pap test, HPV test or imaging when clinically indicated
Assessment of treatment-related side effects
Psychological and sexual health support
Lifestyle counseling, smoking cessation and HPV vaccination counseling
After treatment, patients should seek medical advice promptly if they develop vaginal bleeding, foul-smelling discharge, pelvic pain, leg swelling, urinary difficulty, changes in bowel habits, unexplained weight loss or persistent cough.
Does HPV vaccination replace screening?
No. HPV vaccination is highly effective in preventing cervical cancer, but vaccinated individuals should still follow screening recommendations. The vaccine works best before exposure to HPV, yet some people may still benefit from vaccination later depending on age, previous vaccination status and individual risk. This should be discussed with a healthcare professional.
Key message: What should I do?
Regular cervical screening is one of the most effective ways to prevent cervical cancer. If your HPV or Pap test result is abnormal, do not panic; it usually means that further evaluation or closer follow-up is needed. Precancerous lesions detected early can often be treated successfully.
This article is for general information only. For personal diagnosis, treatment and follow-up, please consult a gynecologist or gynecologic oncologist.
