If someone accidentally spits (whilst talking) into your coffee which you drink and they have/had skin cancer, can any cancerous cells be transferred to your body and cause a cancer? I know germs and viruses transmit this way but is it the same for cancer. Been really worried that I may have cancer cells in my stomach and have been awake all night worrying about this. I am sure this is my HA working overtime but it helps to get it off my chest and I’m sure I’m not the only one who has these thoughts. Please help, thanks.