Is kidney cancer metastasis to both lungs contagious?

Family members of kidney cancer patients or caregivers who take care of kidney cancer patients are more or less worried. Is kidney cancer contagious? According to current clinical medical case analysis, kidney cancer and other cancers are not contagious. However, its recurrence rate is very high, so everyone must pay attention to this point.

The so-called infection is a disease that spreads from one person to another through some means. This kind of infection must meet three conditions: the source of infection, the route of transmission, and the susceptible population. However, medical evidence shows that cancer patients are not the source of infection, because autologous cancer cells cannot survive in other people's bodies. Even if a cancer patient removes his own cancerous tissue and directly implants it in another person, it will be killed by the other person's strong immune rejection ability.
Moreover, the international medical community did not classify kidney cancer and other cancers as infectious diseases, nor did they take large-scale isolation measures. Many doctors pricked their own fingers when performing surgery on patients, but they did not see any infection.
In short, kidney cancer and other cancers are not contagious. As long as the patient's family and caregivers keep a positive attitude and give the patient more care and encouragement, I believe the patient will recover soon.