What causes hematuria after exercise

summary

Many people have hematuria during exercise. Recently, it was found that several middle-aged people had hematuria when they took part in strenuous exercise. They had a good rest and were diagnosed as "exercise hematuria". How did this happen?

What causes hematuria after exercise

First: when high-intensity exercise, the body sweats a lot, plus a lot of blood flows to the muscles, renal blood flow decreases, renal vascular ischemia and hypoxia, resulting in acute damage to the kidney. When blood flows through the glomerulus, due to the increased permeability of glomerular filtration membrane, red blood cells can slip out of the glomerular filtration membrane and excrete through the urinary system, forming hematuria. As long as you have a good rest, renal blood flow will be reduced When the flow increases, the glomerular filtration membrane permeability returns to normal, the red blood cells in the blood can not slip out, and the hematuria disappears.

Second: due to the long-time pedaling action, the kidney moves up and down excessively due to the greater force of pedaling, and the waist flexes and stretches violently at the same time, so that the kidney is squeezed, and the renal blood vessels are pulled or twisted, which leads to kidney injury and hematuria.

Third: this may be related to the difference in the situation of renal ischemia caused by everyone's kidney during physical exercise. Some people do not have renal ischemia even if they exercise a lot, and some people may cause renal ischemia. In addition, it may be related to the way the body moves.

matters needing attention

In the diagnosis, doctors often exclude urinary diseases such as urinary tract stones, urinary tumors and so on through ultrasound, urine analysis and other examinations. After the diagnosis, they should have a full rest, drink water properly, reduce the amount of exercise, and change the movement mode of squeezing the kidney.