2. FEVER

When cancer metastasizes, fever accompanied by night sweats usually crops up to a degree that will most likely cause alarm. Fever, in fact, is very common with people diagnosed with cancer. Another medical fact is that fever typically occurs after cancer had already spread to other areas of the body.

True enough, almost all people with cancer get hit by fever from time to time, especially when cancer has already affected the immune system. Cancer fever also makes it hard for the body to fight the infection inside, which makes the fever more troublesome.