Is it true that urinating with foamy, slow-dissolving saliva like beer foam is a sign of kidney disease? (Truc, 33 years old, Ha Tinh )
Reply:
Normal urine can be foamy, however, the foam usually disappears quickly and the amount of foam depends on some conditions such as the speed of urination, the bladder is too full. At that time, foam only appears when the fast flow hits the toilet. Sometimes, urine can also be foamy when it is more concentrated, especially in people who do not drink enough water or are dehydrated, such as fever, sweating, diarrhea...
Toilet cleaners in the toilet bowl can also cause urine to foam.
Foamy, slow-dissolving urine or normally cloudy urine may be due to too much protein. This is also a sign of kidney disease such as kidney failure, glomerulonephritis, or urinary stones, urinary tract infections.
Another cause is retrograde ejaculation. This is a condition that occurs when semen flows backward into the bladder instead of being released through the penis.
If your urine is foamy and takes a long time to dissolve, you should go to the hospital for a health check and kidney disease screening.
Doctor Nguyen Van Thanh
Department of Internal Medicine, Hanoi Medical University
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