Why is urine cloudy?
Slurry urine is often caused by glomerular disease and urinary tract infection. To know the exact cause of the disease, the patient needs to see a doctor to check kidney function and urine test. Here are some key facts regarding the pathophysiology of cloudy urine:
1. Urine contains protein that makes urine cloudy
Urine in healthy people changes color from light yellow to dark yellow depending on the amount of water supplied to the body, but absolutely no urine scum. However, for some reasons, the glomerular filtration rate is reduced, which will make large substances unable to pass through the filter membrane, resulting in being excreted in the urine, including proteins. Slurry urine is very consistent with the symptoms of proteinuria. In addition, to show that there is protein in the urine, you can add vinegar or sulfosalicylic acid to the urine, there will be precipitation and cloudiness.
Proteinuria is a sign of kidney damage. In general, positive proteinuria is common in the following cases:
Renal pathology: Nephrotic syndrome, acute glomerulonephritis and chronic glomerulonephritis, renal failure with edema, urea, and elevated serum creatinine.
Blood diseases such as multiple myeloma, proteinuria in pregnant women: Pregnant women in the last 3 months of pregnancy with hypertension and edema are likely to have pregnancy toxicity. If left untreated, it can cause eclampsia and stillbirth. Localized proteinuria: Common in adolescents under 30 years of age, with proteinuria that varies by position. If the patient lies at rest, stretches the legs at the bed, the proteinuria is negative. If the patient stands for more than an hour, the proteinuria becomes positive. The disease is benign and usually resolves on its own after the age of 30.
2. Urine contains pus, making urine cloudy
Purulent urine is caused by an infection of the urinary tract, causing an increased rate of neutrophils in the urine. White blood cells cause urine to have a purulent color, which can be scum on the surface for a long time and sticky pus residue at the bottom of the potty. The cause of urine is scum, pus is due to:
Urethritis: Inflammation occurs due to pathogenic bacteria in the urethra, the most common being gonorrhea. When urinating, it is often accompanied by a feeling of burning and pain when urinating. Prostatitis: Prostatitis often accompanies urethritis. In addition to cloudy urine, the patient also has fever, pain around the anus, upper pubic area, difficulty urinating or peeing drop by drop. Cystitis: People with cystitis often have pus-filled urine with painful urination, and frequent urination. On the ultrasound image of the bladder, there is an ulcer, a residue of pus.
Pyelonephritis: The disease often has an obstructive cause such as hydronephrosis, retrograde infection or after sepsis. Sterile pyuria: The disease usually occurs due to foreign objects entering the bladder, non-infectious stones, fungi, kidney tuberculosis, taking antibiotics. Sterile pyuria is often accompanied by vaginal discharge.
3. Urine contains lipids that make urine scum
Diarrhea in lipids, mainly fatty acids, phospholipids, triglycerides, almost no cholesterol, can be the cause of cloudy urine, specifically:
Nephrotic syndrome: In nephrotic syndrome , lipiduria can be up to 0.4g - 1g in a day and possibly more, in which the content of cholesterol, triglyceride, and phospholipid components is increased. Pregnancy: Lipidosis also occurs at the end of pregnancy Other diseases: People with diabetes, biliary cirrhosis, hypothyroidism, end-stage renal failure are also prone to lipid diabetes.
4. Urine contains chyme, making urine cloudy
Urine in healthy people does not contain chyme. Therefore, when you see that your urine contains chyme, you need to see a kidney function test immediately.
The manifestation of chyme when it exists in the urine, which is mainly triglycerides, will make the urine milky white, if it stays for a long time it will thicken like jelly, if it stays for a long time, it will appear scum in the urine. .
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