People without symptoms may still have hepatitis B or C, allowing the risks of cirrhosis and liver cancer to build unnoticed. Those born in or before 1986, under age 80 and never previously screened are eligible for one free lifetime blood test.
The greatest hidden risk is feeling healthy despite infection. Without early detection, the viruses may cause chronic liver inflammation and gradually raise the risks of cirrhosis and liver cancer. More than 7.88 million people across Taiwan have been screened, while those with abnormal results require further examination and treatment.
Adult preventive healthcare data show that infection rates have declined. Among people aged 40 to 79, the positive rate is 8.5% for hepatitis B and 1.1% for hepatitis C. However, lower overall rates do not rule out individual infection, particularly because early hepatitis is often asymptomatic.
Hepatitis B can spread through blood and bodily fluids. Sharing toothbrushes, razors or needles may increase the risk. Hepatitis C is mainly blood-borne, and inadequately sterilized equipment used for ear piercing, tattoos or acupuncture may also cause infection.
Eligible people can contact medical institutions offering adult preventive healthcare services. Those never vaccinated against hepatitis B may seek a vaccination assessment. Anyone with an abnormal screening result should complete follow-up examinations and treatment as advised, even without symptoms, to reduce the risks of cirrhosis and liver cancer.