Unusual ‘urine foam’… what’s going on with your body?


There may often be foam after urination. Small bubbles, such as beer foam, may remain after the water is flushed. What if bubbles like this occur continuously, not just once or twice? There are also symptoms of frequent swelling of the body. What happened to my body? Let’s find out based on data from the Korea Centers for Disease Control and Prevention.

◆ Even if the water goes down… If small urine bubbles remain

When protein is mixed with urine, it foams. Even after urinating and flushing, small bubbles, such as beer foam, may remain in the toilet. At the same time, the body may swell or gain weight. Edema starts with swelling of the instep. Then, it gets worse as it gradually rises in the order of the ankle, shin, and thigh. It is normal to have less than 150 mg of protein in the urine. However, if the total amount of protein excreted in urine per day is more than 150 mg, it is classified as ‘proteinuria’.

◆ If a lot of protein is mixed in the urine… signs of health problems

If the amount of protein excreted in urine is more than 3.5g/m2 per day, kidney (kidney) abnormality may be suspected. Proteinuria is one of the important indicators for diagnosing kidney disease. If the edema due to proteinuria is severe, a mark may appear when pressed with a finger. Hematuria, hypertension, and hyperlipidemia may appear together. Anorexia, nausea, vomiting, and weakness may be signs of chronic kidney disease. In addition, joint pain, skin rash, and fever may also occur.

◆ Standing for a long time, fever, intense exercise, stress, etc.

Proteinuria can occur temporarily even after fever, intense exercise, or stress. Even standing for a long time can cause proteinuria. When you lie down and rest, proteinuria tends to go away. The problem is that, unlike transient proteinuria, there is continuous proteinuria. Persistent proteinuria occurs when there is kidney disease or a kidney-related disease. It can be confirmed by a protein/creatinine ratio test at a hospital.

◆ Proteinuria found in health examinations… “Look carefully at the examination result table”

If you have a health checkup every year, there is a kidney disease item in the blood test. Serum creatinine and renal glomerular filtration rate can be used to judge kidney health. If ‘kidney dysfunction’ occurs, it is better to consult a doctor. Transient proteinuria can only be observed without special treatment. However, persistent proteinuria is a sign of kidney disease. Particular attention should be paid to the amount of protein detected in the urine.

◆ If there are no symptoms of kidney problems even if there is a lot of proteinuria

The kidney is an organ that filters waste products from the body. It plays an important role enough to be called a ‘purifier in the body’. However, recently, there are a few people whose kidneys fail quickly due to obesity, etc. If there is a lot of proteinuria, a kidney biopsy must be reviewed. When kidney failure becomes chronic, it greatly affects the quality of life. However, there are cases where there are no kidney-related symptoms even when there is a lot of proteinuria. Even if there are no symptoms, it is important to find the cause of the disease through examination at the hospital.

Reporter Kim Yong-eok [email protected]

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