Heparin-induced gross haematuria : a case study

Spotting blood in urine can be alarming. In many instances the cause is harmless, but blood in urine can indicate a serious disorder. Haematuria can be categorized into two categories, such as gross haematuria and microscopic haematuria. Gross haematuria is visible with naked eyes, and easily identifiable, whereas microscopic haematuria can be identified after doing a urine test under a microscope. It is important to know the primary cause of bleeding. It can be either due to medications, kidney disorders, urinary tract infections or strenuous exercise's. Here we report a case series of gross haematuria for three patients where it has been caused by anticoagulant drug heparin. Our case series illustrates a strong causal relation with heparin causing gross haematuria.