I have completed my chemotherapy of 6 months with folfox and oxaliplatin on March 12th 2020..on Sunday I notice my stool was black in colour with slight blood stains.. Just 2 loose stools after that normal colour stool was there but again today got black stool but no blood.... got my blood test done
My hemoglobin levels are 13.2
Only concern point is Amylase is 154
GGT 293
ALT 44.5
Also uric adic is 559. 75
Random
sugar is normal..
Also chest xray was normal and sonography reports were normal but doctors have asked for colonoscopy
What can be the reason of my black stool?