Learn more about black stool and when to see a doctor here.
Small black stool.
Hyperthyroidism causes weight loss shakiness tiredness sensitivity to heat insomnia and more.
It could be a sign of esophageal and gastric cancers.
Treatment depends on the cause.
Side effects of medications with bismuth include black stool and a black tongue.
There are some exceptions to this.
Black stool may occur if you take iron supplements or bismuth containing medication.
If you re taking iron supplements for example your stools may appear dark green to the point where they almost look black.
Hematochezia is often caused by bleeding from the lower digestive.
Black stool causes related to diet and lifestyle factors include the following.
Black stools caused by blood indicate a problem in the upper digestive tract.
This is called melena.
A black stool is a false melena if it is due to eating foods like cranberries beets prunes dark chocolate cookies or blood sausages.
In babies the first few stools passed are almost pure black.
Black stool along with pain vomiting or diarrhea is cause to see a doctor right away.
Rectal bleeding of bright red blood with clots sometimes mixed with stool is called hematochezia.
The most common condition causing black stools is a bleeding ulcer.
If you ve taken bismuth medication like pepto bismol that can also make your stools look almost black.
The causes of black stool usually include colitis stomach ulcers and certain foods.
It s always best to check with a doctor if you re unsure.
These are known as meconium stools.
Black stool that is tarry in texture and foul smelling is often a symptom of upper gastrointestinal bleeding from the esophagus stomach or small intestine.
If you have bleeding in the upper gi tract the esophagus stomach and duodenum you could have black tarry stools that are called melena.