6. A Lump in Your Side
A tumor in the kidney can push out muscle and connective tissue as it grows. A palpable lump that appears on either side around the base of your ribcage, in your mid-to-lower back, or in your abdomen can indicate a tumor. (20)
The pressure caused by the tumor can translate to lower back or abdominal pain. (21)
7. A Fever that Just Won’t Quit
Fever is a natural indication that your immune system is working overtime to fight infection.
Most fevers disappear after a couple of days, once the body has the infection under control.
Persistent or recurrent fever isn’t necessarily a sign of kidney cancer but it is definitely one of the most apparent. (22)
Whenever a fever occurs and lingers with no identifiable causal connection such as flu or infection, it’s time to seek professional attention.