Urine foams - this much is normal

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Urine is a topic that people usually don't want to deal with. However, you can draw important conclusions about your own health from this excretion. If necessary, a visit to the doctor may be necessary.

What does it mean if the urine foams?

That the urine everyone has probably noticed that it can look different in colour, smell and texture. In most cases, there is nothing serious behind it. The urine can turn a dark yellow, for example if you have not drunk enough. It can also vary in smell after eating asparagus, for example. Surely everyone has seen this before.

Foamy urine can also have different causes. If the stream of urine is very strong and the distance to the urinal is greater, foaming urine can occur due to the turbulence of the excretion. Normally, however, the foam bubbles disappear again quickly, similar to a pot that is filled with water in a large jet. It also pearls and foams, but also disappears quickly.

Foamy urine doesn't have to have a serious cause

If the stream of urine is strong, there will be foamy urine, but the bubbles will dissipate quickly, this is completely normal and harmless.


The foam in the urine is caused by a higher proportion of protein in the urea. Those who have drunk little have a higher protein content in their urine, which leads to foaming. This can also happen if you eat a very high-protein diet, which can often be the case with athletes, especially strength athletes. Foamy urine is also possible as part of a protein-based diet, but it is harmless. Even after a sporting effort, there is often some protein in the urine.

If the foam bubbles are larger and whitish, it may also be the result of cleaning agent residue from cleaning the toilet. That has nothing to do with the urine.

The foam can also be triggered by taking medication, specifically antibiotics, cancer drugs or painkillers. At stress, Fever, an infection or heat and cold, protein can also occur in the excretion. Adolescents who are still growing sometimes have elevated values.

When is foam in the urine a problem?

Normally, there is very little to no protein in the urine. If there is now foamy urine that is also a bit cloudy, you should at least be vigilant and observe it more closely. If the foam persists and is difficult to dissolve, consult a doctor. Especially if this happens often.

If there is a lot of protein in the urine, this can be an indication of damaged kidneys or the kidney filter. In this case, it is important to make an appointment with the doctor. Especially if there are other symptoms such as water retention in the tissue or increased blood lipid levels.

It may be proteinuria. The kidneys normally filter the protein and keep it out of the urine. So if there is too much protein in the urea, something is wrong with the filtering function of the kidneys.
A urinary tract infection can be the cause of foamy urine when combined with an increased urge to urinate, Pains during urination and sudden incontinence. Here you should also consult a doctor and not delay anything.

An alarm signal is definitely when supposed to the foamy urine back pain come to it, because the kidneys are on the right and left far below on the spine. It can be a stabbing flank pain or a dull ache on the right and/or left of the lower spine. In this case, you should make an appointment with a specialist as soon as possible.

Test strips from the pharmacy are recommended for the first test at home if you suspect that the protein levels in the urine are too high. If you have the feeling that something is wrong, it is essential to make an appointment with the doctor to have the causes clarified.

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