digestive health


Question by  Patipada (21)

Can black stool be caused by a nosebleed?


Answer by  elynne (1153)

It would have to be an massive nosebleed. Also one that you are not noticing. The black tarry stool shows blood being digested by your GI tract. You would have to be swallowing the blood and passing it through the stomach and GI tract. I would find a nosebleed causing black tarry stool hard to believe.

posted by Anonymous
I just had a nose bleed where I was swallowing a lot of the blood....my very next stool was black and tarry...the previous one was normal...I find it too coincedental to NOT be from anything else but the swallowing of the blood. My nose bleed lasted about 90 minutes.  add a comment

Answer by  Aubrey (356)

You can get bloody stools from swallowing blood from a nosebleed. To be safe, visit your doctor for a definite answer as black stool can have other causes.


Answer by  jen37 (1135)

Yes, if you're swallowing any decent amount of the blood from your nose bleed it can cause darker movements. Just make sure the coloring goes away once the bleed stops.


Answer by  finlct1 (73)

Not necessarily. However, if a nosebleed is intense and you lose a lot of blood you will also lose a lot of iron that is in the blood which can cause anemia and a potential black stool.


Answer by  TV (305)

Nosebleeds are usually not the reason for black stool. Black stool could be caused by an excessive amount of blood being swallowed. It is best to seek medical advice.


Answer by  Sue1962 (5)

Have just returned from hospital after being an inpatient and treated for an horrendous nosebleed, I have noticed that parts of my stools have large dark patches that I assume are caused by swallowing so much blood. If it doesn't go away I'll get it checked out.


Answer by  elynne (1153)

Not usually, unless your shallowing a large amount of blood. Black tarry stools is a sign that you have digested blood in your stool.


Answer by  worker6333 (65)

I have never heard of this. Black stool can mean that you have internal bleeding of some sort so perhaps if you swallowed alot of blood during the nosebleed it could come out as black stool.

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