The more common factor for men to have post-exercise hematuria is Nutcracker syndrome, which is able to compress the left renal vein due to the long course of the left renal vein in the body and the small angle between the superior mesenteric artery and the abdominal aorta. As a result, these problems can occur, especially after exercise, which can cause hematuria. There are also factors such as urinary stones, which can be displaced during exercise and thus cause friction on the urinary epithelium, thus also triggering the problem of hematuria. Patients should have an ultrasound of the urinary tract to be able to clarify the specific disease problem. If an anatomical abnormality or a stone problem is found, it can be corrected surgically. Other factors are abnormalities in the body’s own blood clotting function, which can easily lead to capillary rupture after strenuous exercise, and thus bleeding when the blood clotting function is abnormal, and patients can have their blood clotting function checked to clarify this disease.