Course of disease with protein in urine
The course of the disease is largely determined by the underlying disease. If it is a urinary tract infection, cystitis or other infectious cause, the excretion of protein usually begins very suddenly. However, the disease can be quickly contained and cured with antibiotics.
If the cause is kidney disease, the excretion of protein in the urine is usually rather insidious. Some kidney diseases can be completely cured, but the course is longer than with a simple infection. Chronic kidney disease patients usually have to fight proteinuria time and again.
The duration of proteinuria varies greatly depending on the disease. With the harmless causes, the proteins in the urine usually disappear again after a few weeks. Even in the case of infectious causes that have been treated with antibiotics, no more protein can be found in the urine after a few days or weeks.
Other diseases that damage the renal corpuscles can accompany affected persons throughout their entire life. Normally, they too can be treated so that the protein content of the urine decreases. However, this can take several weeks.
Protein in urine during pregnancy
The combination of protein and blood in urine can have different causes. The kidney filters the fluid in the body and produces urine by binding our body’s waste products in the fluid, while valuable nutrients are filtered from the fluid back into the body. The kidney acts like a sieve, allowing only particles up to a certain size to pass through.
If the renal corpuscles are damaged, this sieve can become coarser so that larger particles can also pass into the urine. These larger particles include proteins and blood cells, for example. This causes protein and blood to appear in the urine.
But the damage does not necessarily have to be in the kidney. Infections of the urinary tract and the bladder can also lead to protein (protein) and haematuria (blood in urine). Bacteria, for example, can attach themselves to the walls of the ureters or the bladder.
There they are fought by inflammatory cells. As a result of this defensive reaction, there is minimal bleeding, which causes the blood to enter the urine. The inflammatory cells and the bacteria consist of proteins and therefore form the protein part of the urine. But diseases are not the only causes of protein and blood in urine. Drugs can also change the barrier of the kidney corpuscles and thus make the “sieve” more permeable for larger substances.
