This could be down to a lack of fruit consumption. This happened to a cousin of mine and the doctor said more fruit and veg should be eaten. If you're really worried go to the doctor. Hope this helped!
Melena or melanotic stools.
my stools are yellow and loose
Because it mixes with the acids and juices in your body.
ive had flu for a week and my stools were black for 3 days now so Im saying yes
Melena
Yes,Incidence not known: bloody, black, or tarry stools
yes
I have narrow stools, black blotches in my stool that is thick and attached to the stool, sometimes just tarry stools. I have no weight loss though, I have had breast cancer. Does it sound like I have colon Cancer?
Black stools can occur during pregnancy, but are not a sign of pregnancy. Black stools can be caused by things such as blood in the stool, an ulcer, or gastritis. If they continue for more than a couple of days, the person should see his or her doctor.
if your stool is black then there is alot of iron in your system. those who take iron tablets, their stools are black.
It could mean he has a colon ulcer.
thats what id like to know