Cervical cancer was once one of the most common causes of cancer death for women globally. However, with the advent of screening tests and vaccinations, it has become one of the most preventable and treatable forms of cancer. In India, cervical cancer remains a significant health challenge, ranking as the second most frequent cancer among women between 15 and 44 years of age. This BodyBiome guide explores the essentials of the disease, with a specific focus on the Indian healthcare landscape.
What is Cervical Cancer?
Cervical cancer occurs in the cells of the cervix-the lower part of the uterus that connects to the vagina. Most cases are caused by various strains of the Human Papillomavirus (HPV), a common infection passed through sexual contact. When exposed to HPV, the body’s immune system typically prevents the virus from doing harm. In a small percentage of people, however, the virus survives for years, contributing to the process that causes some cervical cells to become cancer cells.
Symptoms of Cervical Cancer
In its early stages, cervical cancer may produce no signs or symptoms. As the cancer advances, symptoms may include:
- Irregular Bleeding: Blood spots or light bleeding between or after periods.
- Post-coital Bleeding: Bleeding after sexual intercourse.
- Unusual Discharge: Vaginal discharge that may be heavy, watery, or have a foul odor.
- Pelvic Pain: Pain during intercourse or persistent pain in the pelvic region.
Causes and Risk Factors
While HPV is the primary cause, other factors can increase the risk, particularly in the Indian context:
- Persistent HPV Infection: High-risk strains like HPV 16 and 18.
- Early Marriage and Childbearing: Historical data suggests early sexual activity can increase exposure risks.
- Smoking: Tobacco use increases the risk of squamous cell cervical cancer.
- Weakened Immune System: Conditions that affect the immune system can make HPV more likely to persist.
- Lack of Screening: Many cases in India are diagnosed at an advanced stage due to a lack of regular Pap smears or HPV testing.
Stages of Cervical Cancer
Understanding the stage helps determine the best treatment plan:
- Stage I: The cancer is confined to the cervix.
- Stage II: The cancer has spread beyond the cervix but not to the pelvic wall or the lower third of the vagina.
- Stage III: The cancer has spread to the lower third of the vagina and/or the pelvic wall.
- Stage IV: The cancer has spread to the bladder, rectum, or other parts of the body like the lungs or bones.
Diagnosis and Screening in India
Early detection is the key to survival. In India, several screening methods are available:
- Pap Smear: A procedure to collect cells from the cervix to look for abnormalities.
- HPV DNA Test: Checking cells for infection with high-risk types of HPV.
- VIA (Visual Inspection with Acetic Acid): A low-cost screening tool often used in resource-limited settings across rural India, where a healthcare provider applies dilute vinegar to the cervix to identify abnormal areas.
Treatment Options
Treatment depends on the stage of the cancer and general health:
- Surgery: Usually for early-stage cancer (e.g., hysterectomy).
- Radiation Therapy: High-energy beams used to kill cancer cells, often combined with chemotherapy.
- Chemotherapy: Drug treatment using chemicals to kill cancer cells.
- Targeted Therapy: Focusing on specific weaknesses within cancer cells.
Prevention: The HPV Vaccine
Prevention is the most effective tool against cervical cancer.
- Vaccination: The HPV vaccine is most effective when given before any sexual activity begins.
- India’s Indigenous Vaccine: “Cervavac,” developed by the Serum Institute of India, has made the vaccine more affordable and accessible.
- Government Initiatives: The Indian government has been working toward integrating the HPV vaccine into the Universal Immunization Programme to target girls aged 9–14.
Outlook and Statistics
While the burden of cervical cancer in India is high, accounting for nearly one-fourth of the world’s cervical cancer deaths-the outlook is improving. With increased awareness, regular screening, and the rollout of affordable vaccines, the goal of eliminating cervical cancer as a public health problem is within reach.
References
- World Health Organization (WHO): Cervical Cancer Country Profiles – India.
- Healthline: Cervical Cancer: Symptoms, Causes, and Treatment.
- WebMD: What Is Cervical Cancer?
- Ministry of Health and Family Welfare (MoHFW), India: National Programme for Prevention and Control of Cancer, Diabetes, Cardiovascular Diseases and Stroke (NPCDCS).
- The Lancet Oncology: The burden of cancer in India: Government of India estimates.
- Serum Institute of India: Information on Cervavac (Indigenous HPV Vaccine)