In our daily work, we often meet patients who come to see a doctor because they find blood in urine. Many patients are afraid of this, as if the end is coming, and a few patients take it for granted. In fact, if blood is found in urine, just go to a regular hospital in time, find out the cause of hematuria, and then treat it symptomatically, so there is no need to panic. Of course, don't take it seriously, delay treatment, and let small mistakes lead to great disasters. There are actually two kinds of hematuria in medicine. One is "hematuria under microscope", which means that 1000 ml of urine contains less than 1 ml of blood, which can only be found with the help of a microscope. The other is "gross hematuria", which means that 1000 ml of urine contains more than 2 ml of blood. According to the amount of bleeding, the color of urine varies from reddish to obvious blood color or even meat washing water sample, and blood clots can be seen in some patients' urine. To find out the cause of hematuria, it is necessary to know whether there are other symptoms in the body when hematuria appears. For example, hematuria with waist pain and discomfort is mostly caused by kidney and ureteral stones, and hematuria often disappears after the pain is relieved; Hematuria is accompanied by frequent urination, painful urination and urgency, which may be caused by urinary system infection, especially acute cystitis; However, hematuria with dysuria, thin urine line, abdominal distension and pain, and increased urination at night in elderly men are mostly manifestations of prostatic hyperplasia; There is also hematuria, and the patient may not be aware of other discomfort. This is the most important thing to pay attention to, and you must not be careless, because many of this painless hematuria are the characteristics of urinary tumors, among which bladder tumors are the most common, so if the patient touches the mass in the upper abdomen or lower abdomen when hematuria occurs, he should be treated with caution and see a doctor in time! Of course, sometimes patients with benign prostatic hyperplasia, polycystic kidney disease, renal tuberculosis and kidney calculi will also have painless hematuria. In addition, kidney or bladder trauma can also cause hematuria, especially kidney damage caused by waist trauma, which can be life-threatening in severe cases; Hematuria caused by some patients is rare at ordinary times, so I don't need to say it here. To sum up, when people find blood in their daily lives, they must go to a regular hospital in time. As long as the doctor inquires about the medical history in detail, and then goes through necessary examinations, such as B-ultrasound, CT scan, intravenous pyelography, cystoscopy and so on. , can clear the cause of hematuria, timely treatment.