cervical cancer

Overview
Cervical cancer is a type of cancer that forms in the cells of the cervix—the lower, narrow part of the uterus that connects to the vagina. It usually develops slowly over time and often starts with precancerous changes called dysplasia. Most cases are caused by long-term infection with high-risk types of human papillomavirus (HPV), a common sexually transmitted infection.

Why It’s Important
Cervical cancer is highly preventable and treatable when detected early. Regular screening (like Pap tests and HPV tests) can catch abnormal changes before they turn into cancer. If left undetected or untreated, cervical cancer can spread to other parts of the body and become life-threatening.

Quick Facts

  • Primarily affects women, usually between ages 30–50

  • Caused in over 90% of cases by high-risk HPV strains (especially types 16 and 18)

  • Estimated 11,500 new cases diagnosed annually in the U.S. (CDC)

  • Considered a slow-growing cancer, often preceded by years of abnormal cell changes

  • Two main types:

    • Squamous cell carcinoma (most common)

    • Adenocarcinoma (less common, but harder to detect early)

What Happens in the Body
When exposed to high-risk HPV, the cells on the cervix can begin to change. In some people, the immune system clears the virus. In others, the virus stays and causes abnormal cell growth over time. If untreated, these abnormal cells can become malignant, invade nearby tissues, and eventually spread to distant organs through the lymphatic or blood system.

Common Signs and Symptoms
In early stages, cervical cancer often causes no symptoms. As it progresses, people may experience:

  • Abnormal vaginal bleeding (especially after sex, between periods, or after menopause)

  • Watery or bloody vaginal discharge with a foul odor

  • Pelvic or lower back pain

  • Pain during intercourse

  • Fatigue or weight loss (in advanced stages)

Diagnosis
Cervical cancer is usually found through routine screening:

  • Pap test (Pap smear) detects precancerous or cancerous cells

  • HPV test identifies high-risk virus types that can lead to cancer

  • If results are abnormal, follow-up may include:

    • Colposcopy (magnified cervical exam)

    • Biopsy to confirm diagnosis

    • Imaging (MRI, CT, PET scans) for staging
      Red flag symptoms like persistent bleeding or pelvic pain should prompt medical evaluation.

Treatment and Management
Treatment depends on the cancer stage and individual factors:

  • Early-stage: Surgery (e.g., hysterectomy or cone biopsy) may be curative

  • Locally advanced: Radiation therapy and chemotherapy combined

  • Advanced/metastatic: Systemic treatments like chemotherapy, targeted therapy, or immunotherapy

  • Regular follow-ups are critical after treatment to monitor for recurrence
    Preventive care includes HPV vaccination, safe sex practices, and routine screenings

Risks and Complications
If not treated, cervical cancer can:

  • Spread to bladder, rectum, liver, lungs, or bones

  • Cause chronic pelvic pain and organ dysfunction

  • Lead to infertility or premature menopause (due to treatment)

  • Become fatal if diagnosed too late

Who Is at Risk

  • People with persistent high-risk HPV infection

  • Those who don’t get regular Pap/HPV tests

  • Early sexual activity or having multiple sexual partners

  • Smoking, which weakens immune response in cervical tissue

  • Immunocompromised individuals (e.g., those with HIV)

  • Long-term use of oral contraceptives (linked to slightly increased risk)

Related Conditions

  • HPV-related cancers (vaginal, vulvar, anal, throat)

  • Cervical dysplasia (precancerous changes)

  • Pelvic inflammatory disease (PID), which may coexist but is not a cause

When to See a Doctor

  • If experiencing abnormal bleeding, pain during intercourse, or unusual discharge

  • If Pap or HPV test results are abnormal

  • If overdue for routine cervical cancer screening

  • After exposure to HPV or if unsure of vaccination status

Last Updated: June 19, 2025