Kidney failure is often associated with back pain and frequent urination, but there are lesser-known symptoms to watch for. Early signs of kidney failure are subtle and crucial to detect, as they may not cause pain or noticeable discomfort. Recognizing these hidden indicators can prompt early medical intervention. Discover 5 uncommon symptoms of kidney failure including extreme tiredness, trouble concentrating, persistent itching, swelling in hands and feet, and changes in appetite and taste.