Question

You have black stools but the rectal examine showed no blood what could it be?

Answer 1

There are many reasons stool could appear black, like even of iron deficiency and eating black food are also some of the cause...

This is especially common for people who have had ostomy surgery or a colectomy, because the food is not being digested as fully as it is in people who have not had any abdominal surgery.

So if there is no blood in your stool then u don't worry much have healthy food which are rich in fibres...

All the best and take care....