What are the early symptoms of kidney disease?

TCM pointed out that after the occurrence of kidney disease symptoms are often very hidden, so we often easy to overlook, then what are the early symptoms of kidney disease?
1. changes in urine output. Normal urination 1000-2000 ml daily average of 1500 ml, both urine becomes more or fewer, are likely to be manifestations of renal disease. Especially the normal nocturnal rarely, if found to be up several times at night, and drink water before going to bed is not much more to be alert to kidney disease.
2. Urine traits change. Normal urine is clear, pale yellow color, drink less or if first morning urination, slightly darker color. If the urine color red, or urine foam more, pay attention to the Nephrology checks.
3. edema. The kidney is the organ of the body of water metabolism, kidney bad, the water will accumulate. Some people found the morning eyelid edema, or legs, swollen legs, should consider the kidney.
4. nausea, vomiting and other gastrointestinal symptoms. Development of end-stage kidney disease will affect gastrointestinal function, leading to nausea, vomiting, loss of appetite and other symptoms, and therefore have the performance, in addition to gastroenterology, but also pay attention to rule out kidney disease.
5. itchy skin. Patients with end-stage renal disease, and because the body can not be discharged through the urine urea will be excreted through the skin, thereby stimulating the skin; in addition, the accumulation of toxins in the body can cause peripheral neuropathy, can cause itchy skin.
Know what the early symptoms of kidney disease, so be sure to pay attention to physical examination, especially the elderly and those with hypertension, diabetes, abnormal blood uric acid at high risk of diseases.