Hello
I recently had a stool test done and the results were positive for red blood cells (microscopy) but negative for fecal occult blood. I know I need to book an appointment with my GP but I have no obvious signs of bleeding and I'm not sure if it's urgent or not.
What's the difference between rbc and fob? I have bad constipation that started a few months ago hence the private test.
Thank you for reading.