Do patients with late-stage cancer spread the disease?
Disease description:
My friend has late-stage cancer, and I've heard that some cancers are contagious. I would like to know, is late-stage cancer contagious?
Doctor's answer (1)
Dr. Qi Zhirong
Late-stage cancer patients do not directly transmit cancer to others. Cancer is a disease caused by abnormal proliferation and differentiation of cells within the body. Its development is associated with multiple factors such as genetics, environment, and lifestyle, rather than being caused by a specific pathogen (such as bacteria or viruses). Therefore, cancer itself is not contagious, whether in its early or late stages. It is worth noting that certain cancers may be associated with specific viral or bacterial infections, such as liver cancer linked to hepatitis B virus infection, and cervical cancer associated with HPV infection. However, it is these viruses or bacteria that are contagious, not the cancer itself. Thus, when interacting with late-stage cancer patients, there is no need to worry about contracting cancer, but attention should be paid to personal hygiene and protective measures to prevent infection with the related viruses or bacteria.
