Usually we can get a general analysis about this by the position of blood urine. If blood urine emerge at the beginning of urination, also known as intial hematuria, it can be concluded that there is something in the urethra; if blood urine occurs in the end of urination, bladder must encounter some infections.
Meanwhile, the majority of patients with renal blood urine present no clotting and blood streak, except for IgA Nephropathy and Purpura Nephropathy. Whereas clotting and blood streak is obvious in non-kidney blood urine.
Another principle is renal blood urine is usually adjoint with proteinuria, edema, but not for non-kidney blood urine. If there is red cell cast was found in the urinary sediment, it can be diagnosed as renal blood urine. Another reliable method to distinguish them is by Phasecontrast Microscope, and if the red cell is in normal shape, blood urine is caused by non-kidney problem; if red cell shapes abnormally, it can be judged as kidney has problems.
In some case, Chronic Kidney Disease(CKD) patients would present transient hematuria which usually happens when they are too exhausted or take some medicines. It is advisable to take regular test to ascertain the cause of Hematuria so that pertinent treatment can be given in time.
