Cancer is not an infectious disease. Don't worry, it won't spread through blood like AIDS. Cancer is a genetic disease. However, immediate family members have a certain direct genetic probability, although it is not absolute. However, if immediate family members have cancer, it is best to pay attention to it and have regular physical examinations, especially those over 30 years old. It is necessary to check at least once a year, and you can also use the 1 cancer urine detection reagent. I have been paying attention to it recently. If you buy it at retail price, it will be more convenient and you can operate it at home by yourself.