A asked, “Doctor, my pee is red, like meat wash, and it turns into soy sauce in the bucket, it’s scary! What’s wrong?” B said, “Doctor, every time I check my urine routine, I always have occult blood and red blood cells positive, do I have nephritis?” C complained, “Doctor, why is it that I’ve been taking medication for so long, but the urine occult blood still keeps coming back? Can this be broken?” …… About hematuria, there are many questions and many diseases that need to be identified, listen to my careful analysis below: 1. First of all, for patients with carnal hematuria, observe whether your hematuria is always red during the pulling process? Yes, it suggests the whole process of hematuria, consider and kidney related. Is there a blood clot or sandstone entrapped? Yes, consider it is related to stones or tumor. 2, routine urine examination is positive for occult blood and red blood cells, then you need to further check the urine red blood cell loci, if the number of red blood cells > 8000 and the aberration rate > 75%, then basically you can be sure that your hematuria originates from the kidney, consider nephritis, you need to carry out 24-hour urine protein quantification, and you need to carry out treatment. 3, If you urinate blood and also have purpura or petechiae on the skin, or bleeding from the nose or gums, then you have to consider whether it is related to blood disorders.