Women running with blood in the urine, the possible causes are as follows:1, urinary stones, urinary system stones exist when strenuous activities or running, stones and urinary system mucosa friction and lead to local bleeding, can be seen when urinating blood in the urine, may also be accompanied by pain in the area of the stone, sometimes the pain is acute, sometimes the pain is a chronic dull ache, ultrasound is needed to further exclude.2, Urinary system tumor, when the tumor occurs in the urinary system, tumor rupture bleeding can occur, sometimes it can appear after the activity, but there is no clear pattern, according to the tumor occurs rupture and the degree of hematuria is different, it is recommended to carry out the urinary system ultrasound for further screening.3. If the kidney has suffered from traumatic injuries, such as impact blow, etc., which may produce a slight contusion, but at this time, there is no obvious self-conscious symptom, it can appear after the exercise or activity. The case of naked eye hematuria. If there has been a clear history of lumbar trauma or small abdominal trauma, the emergence of post-exercise hematuria, it is necessary to consider the existence of renal contusion or urinary system contusion, it is recommended that further urinary system CT and routine urinalysis to confirm the diagnosis.