There are many causes of blood
in urine like kidney stones, infection of the urinary system, kidney disease, <span style = 'background-color: #dae8f4'>blood</span>
clotting disorders, medications like aspirin,<span style = 'background-color: #dae8f4'>warfarin</span>
,phenytoin,quinine,antibiotics ,chronic diseases like diabetes,hypertension,viral infections etc.Only blood
in urine without the presence of leucocytes or pus cells may not always indicate urinary tract infection. Taking aspirin for such a long time can cause blood
in urine. It is best that you discuss your case with a urologist.