Cervical cancer remains the eighth most common cancer among women in Hong Kong, accounting for 3 percent of all new female cancer cases in 2019—yet it stands alone as the only female cancer that can be prevented through vaccination. As health authorities urge greater public awareness, understanding the causes, symptoms, and preventive measures for this slow-developing disease has never been more critical.
The disease is caused by the human papillomavirus (HPV) , a family of viruses with varying levels of risk. Low-risk HPV strains typically cause genital warts, which can appear as cauliflower-like growths on the skin. High-risk strains, however, are transmitted through sexual contact and can trigger cancerous changes in cervical cells over time. Alarmingly, the virus can remain dormant for up to a decade before any signs emerge.
Who Is Most at Risk?
Certain groups face a significantly higher likelihood of developing cervical cancer. These include women infected with HPV types 16 and 18, those who engage in frequent or early sexual activity, individuals with multiple partners or a history of sexually transmitted infections, and people with compromised immune systems, such as those living with chronic kidney disease or HIV. Smoking and lower socioeconomic status also elevate risk.
The stories of two Taiwanese entertainers underscore that age offers no immunity. At 33, actress Zeng Zhi Xi was diagnosed with stage three cervical precancerous lesions after experiencing irregular menstruation and discovering a cyst that grew from three to six centimeters. Fellow performer Lin Zhen Yi, at just 30, received a diagnosis of cervical carcinoma in situ following her first Pap smear—she later recovered after surgery.
Symptoms: The Silent Invader
Cervical cancer can lurk without symptoms for years, but when signs do appear, they demand immediate attention.
Early warning signs include abnormal or irregular vaginal bleeding, bleeding between menstrual periods or after sexual intercourse, and postmenopausal bleeding or discharge tinged with blood.
Advanced-stage symptoms are more severe: persistent back pain, swelling in the legs, difficulty urinating or passing stools, enlarged lymph nodes in the groin or neck, and the formation of abnormal channels between the vagina and rectum.
Survival Rates Depend on Early Detection
Prognosis hinges on the stage at diagnosis. The five-year survival rate for stage one cervical cancer reaches as high as 85 percent. That figure drops to 70 percent for stage two, 35 percent for stage three, and falls below 20 percent for stage four. Even after successful treatment, about 30 percent of women experience recurrence within two years, making regular follow-up essential.
Prevention: A Multi-Pronged Approach
Screening Saves Lives
Women who are sexually active should undergo regular cervical screening. The HPV DNA test combined with cervical cytology is recommended for women aged 30 and older, detecting both high-risk HPV and abnormal cell changes from a single sample. The traditional Pap smear is advised annually for women aged 25 to 64, and for those aged 21 to 24 with elevated risk. After two consecutive normal results, screening every two to three years is sufficient.
Vaccination: A Game Changer
HPV vaccines are available for females aged nine and older, and since the 2019/20 school year, Hong Kong’s Childhood Immunisation Programme has offered free vaccination to eligible primary school girls. Three vaccines are registered locally: the bivalent vaccine (covering HPV 16 and 18), the quadrivalent (covering types 6, 11, 16, and 18), and the nonavalent (covering types 6, 11, 16, 18, 31, 33, 45, 52, and 58). Importantly, vaccination does not replace routine Pap smears, as it cannot prevent all cervical cancer types.
Men can also receive the vaccine to protect against genital warts and anal cancer.
Lifestyle and Dietary Measures
Smoking cessation, good personal hygiene, and consistent use of protection during intercourse are fundamental. Nutritionist Huang Jiao Hui recommends consuming phytochemicals—natural compounds found in plant foods that help fight oxidative stress and precancerous changes. Key sources include citrus fruits (naringin), red and yellow vegetables (beta-carotene), soy products (isoflavones), and yam (diosgenin). Zinc and selenium, abundant in seafood, shellfish, nuts, and whole grains, support healthy cell division and reduce mutation risk.
Traditional Chinese medicine offers further support. Practitioners suggest a “dampness-draining tea” made from plantain seed, white atractylodes, Chinese yam, and cnidium fruit—though consultation with a qualified TCM practitioner is advised before use.
The Path Forward
Cervical cancer is preventable, yet thousands of women remain unaware of its silent progression. The message from Hong Kong health experts is clear: vaccination, regular screening, and a healthy lifestyle form a powerful shield. With early detection, survival rates are high. The challenge now is ensuring every woman knows she holds the tools to protect herself.