Proteins have a special property: they bind water and produce foam, similar to that of soap or egg white. Normally, the kidneys function as an extremely fine filter that removes toxins and excess fluids, retaining valuable substances like protein.
When this filter is damaged, proteins begin to leak into the urine. During urination, these proteins produce a thicker, more persistent foam that doesn’t disappear quickly. It’s important to clarify that a small amount of occasional foaming may be normal. The warning sign is when the foam is:
Abundant
Repetitive
Persistent
Hard to dispel
This is not an isolated episode, but a recurring phenomenon.Proteinuria: More Than a Sign, an Early Warning
The presence of protein in the urine, known as proteinuria, is not a disease in itself. It is evidence that something is damaging the kidney structure. It can be compared to a fine sieve that begins to crack: what it should hold begins to leak out.
