Early symptoms of kidney failure

Kidney is not good usually refers to kidney function damage, some patients kidney is not good without early symptoms, only when the disease reaches a certain degree of clinical symptoms, a small number of patients in the kidney before there will be clinical manifestations, more common as follows: First, digestive system, generally manifested as nausea, vomiting, loss of appetite, because diet is relatively poor may also show weight loss. Second, the urinary system, generally manifested as increased foam content in urine, some patients will show hematuria and even accompanied by low back pain.