What are the symptoms of bad kidneys? Nowadays, with the progress of living standards, people's pace of life is also faster and faster, and with it is the occurrence of a series of diseases in people, in which the kidney disease is the most serious, so do you know the kidneys, if there is a problem, what symptoms will have? Today we will take a look. Symptoms of bad kidneys usually include: edema, high blood pressure, frequent urination, urinary urgency, urinary pain, polyuria and nocturia, hematuria, increased foam in the urine, lumbar pain and so on. 1. Edema Edema is the most common symptom of bad kidneys, usually starting with the eyelids or lower limbs, patients with severe kidney problems will spread to the whole body and even the emergence of pleural fluid and ascites. This kind of kidney disease is divided into two categories: nephropathic edema and nephritic edema. 2. Hypertension The incidence of renal damage in hypertension is positively correlated with the severity and duration of hypertension. Primary hypertension causes complications in other organs, mainly cardiovascular and cerebrovascular, which may appear earlier and be more serious than renal damage, and are the main or key factors affecting the prognosis. 3. Frequent urination, urinary urgency, urinary pain, no urine, oliguria and nocturia These are the bad performance of the kidneys, the normal human urine volume is uniformly 1500 ml per day, 4-8 times per day, the adult urine volume of less than 400 ml in 24 hours is called oliguria, less than lOOml is called anuria, and the nocturia should not be more than 750 ml. too much or too little urine should be to find the doctor's diagnosis and treatment. 4. hematuria hematuria is due to glomerular and tubular damage, the physiological barrier is destroyed, and the blood red blood cell leakage is mixed into the urine. If the amount of bleeding is large and visible to the naked eye, it is called hematuria. Recommended reading >> creatinine increase is how? 5. urine foam increase This kind of kidney symptoms is due to a large amount of protein in the urine performance, this time should do urine Chen gauge and 24 hours urine protein quantitative inspection. Why is there protein in urine? That is because when the kidney is damaged, the function of the glomerulus is damaged by ischemia and hypoxia, the function of the endothelial cells is destroyed, the charge barrier is damaged, the permeability of the kidney is increased, and the large molecule protein leaks out of the kidney into the urine. (The appearance of hematuria and proteinuria indicates that the glomerulus is damaged and renal fibrosis has been initiated, which should be treated in time.) 6. Low back pain Paroxysmal intense low back pain, or accompanied by vomiting, known as "renal colic", most commonly seen in renal pelvic stones or ureteral stones, low back pain is often accompanied by fever, renal pain with percussion pain, urinalysis can be found in the increase of leukocytes, and the urine culture has bacterial growth. In most cases of glomerular disease, there is only lumbar discomfort, vague pain, or only lumbago. 7. Other symptoms of kidney disease: depression, loss of appetite, limb weakness, pallor, anemia and so on. The above is for the netizen's doubt our experts give some simple explanation, must have a little bit of understanding, but once found that something is not right, it is best to go to the hospital for diagnosis. I wish you a speedy recovery.