Is frequent back pain and lumbago a kidney disease?
Low back pain and lumbago are mostly seen in infectious diseases and mechanical factors, such as pyelonephritis, perinephric abscess and kidney stone, etc. Patients will have fever, chills or pus and hematuria and other accompanying symptoms, while renal parenchymal lesions are less common, mainly due to edema of renal parenchymal tissue and compression of the outer envelope of the kidney, in addition, low back pain and lumbago may also be related to sleeping posture, sitting posture and occupation, many people due to poor posture and cause kidney Many people come to the nephrology department with back pain and lumbago caused by lesions in the lumbar muscles and spine on the back side due to poor posture. Mou Shan, Department of Nephrology, Shanghai Renji Hospital
Is oliguria or anuria always a kidney disease?
Not all cases of oliguria and anuria are caused by the kidneys. Urinary tract obstruction can also cause oliguria and anuria, so it is important to distinguish whether it is caused by blockage of the ureter, bladder or urethra, which is mostly seen in diseases such as stone impaction, tumor and prostate.
What is “physiological proteinuria” and “pseudoproteinuria”?
Physiological proteinuria, also known as functional proteinuria, is caused by exercise, fever, cold, etc. It is mild and does not exceed 1 gram a day and lasts for a short period of time, and can disappear within a short time after the above factors are removed. Pseudoproteinuria is caused by blood, pus or vaginal secretions mixed in the urine to affect the test results.
Should I pay attention to increased nocturia?
Some people think that more urine means better kidneys, and more urine at night is better, this is absolutely wrong, normal adults generally urinate 0~2 times at night, more than 2 times means poor renal tubular reabsorption function, there may be early renal insufficiency, need to further check urine specific gravity, urine protein, kidney function index.
What is the normal nighttime urine output? What are the common causes of increased nocturnal urination?
Normal people generally urinate 0~2 times at night, and the volume of urine is 300~400 ml, which is about 1/4~1/3 of the total urine volume in 24 h. As we grow older, the ratio of daytime urine volume to nighttime urine volume gradually decreases, and the ratio is 1:1 by the age of 60. if the number of times and volume of urine urination increases significantly at night, and the volume of urine exceeds half of the total urine volume of the whole day, it is called nocturia. Normal people generally do not drink after dinner, do not eat, after going to sleep, the body metabolic rate is low, blood flow is slow, the original urine through the renal tubules can be fully reabsorbed, so the night urine is significantly less than the amount of daytime urine. Nocturia is mainly seen clinically in: ①Nephrotic nocturia: kidney damage caused by various reasons, so that kidney function is reduced, the kidneys can not completely excrete metabolites in the body during the day, need to continue excretion at night, resulting in increased nocturia. Common in chronic renal insufficiency, etc.; ② drainage nocturia: due to water retention in the body, especially when cardiac insufficiency is not all, the amount of cardiac blood return increases after lying down at night, renal blood flow also increases more, and the volume of urine also increases, commonly in patients with various heart diseases accompanied by cardiac insufficiency; ③ mental nocturia: due to insomnia or mental factors leading to increased nocturia, mostly due to the increase in the number of nocturia, the amount is generally not much. Strictly speaking, those who only increase the number of urination but not the volume of urine do not belong to the category of nocturia.