Chronic renal failure is a common disease, also known as renal insufficiency and uremia, which can trigger a variety of symptoms in the gastrointestinal tract, blood system, cardiovascular system, etc. So what are the symptoms of chronic renal failure? The following is an introduction to “what are the symptoms of chronic renal failure polydipsia and how to prevent chronic renal failure”. What are the symptoms of chronic renal failure polydipsia? First, the condition of patients may vary due to different conditions, generally speaking, the digestive system has anorexia, nausea, vomiting, the smell of urine in the mouth. The nervous system has fatigue, headache, dizziness, drowsiness, irritability, apathy, severe convulsions, and coma. Cardiovascular system has left ventricular hypertrophy, hypertension, retinal hemorrhage, myocarditis, pericarditis, visual disturbance; hematopoietic system has anemia, bleeding tendency. Second, deep whistling, whistling metabolic acidosis, and possibly a signature pleurisy. Pruritus, hyperpigmentation, and imbalance of water-electrolyte balance. When kidney damage is at a certain level, physical changes and symptoms of patients will be obvious. The condition of patients with renal failure will vary. Thirdly, renal failure, a pathological state in which late renal function causes various chronic kidney diseases. Renal failure can be divided into acute and chronic. Acute renal failure progresses rapidly, usually due to inadequate supply of renal blood flow (such as trauma or burns), dysfunction caused by renal obstruction, acute renal failure due to certain factors or caused by poisoning. Chronic renal failure is the main cause of chronic kidney disease, with the onset of time and disease, kidney function gradually declines, leading to the onset of renal failure. How to prevent chronic renal failure 1, actively treat the primary disease. The key to preventing chronic renal failure is to control the primary disease. The most common cause of chronic glomerulonephritis is 50% ~ 60% of the risk factors, as well as other chronic pyelonephritis, lupus nephritis, urinary stones, diabetic nephropathy, hypertension, renal artery stenosis, drug toxic nephropathy, etc.. Attention should be paid to these diseases, which may lead to chronic renal failure. 2, blood pressure control. The control of renal or primary hypertension can prevent the progression of glomerulosclerosis. The former is mainly controlled by the high perfusion of the kidney, and the latter is mainly through the application of antihypertensive drugs. Control of hypertension (or diabetic nephropathy) can be applied to small doses of angiotensin-converting enzyme inhibitors (captopril), which can reduce intra-glomerular pressure, correct glomerular hyperperfusion, hyperfiltration, and delay the role of renal failure, and is suitable for application in early renal failure (blood creatinine 442μmol/L). The above is to introduce to your friends “chronic renal failure polydipsia what are the symptoms of how to prevent chronic renal failure”, I hope that your friends adopt, but also pay attention to maintain a good mood, more exercise to do exercise. Pay attention to diet, eat less spicy and stimulating food, and develop good or habits.