I am taking 75mg of aspirin daily and I did not see any changes in my bleeding tendency since I started taking this. If anything, bleeding during my period became less since I started the aspirin. And I had some memorable bleeding before diagnosis, when I was not taking aspirin at all, as I had undiagnosed ET for years on end.

This doesn’t sound right, and it frustrates me just to read that the GI doctor not only can find no cause, but normalizes the bleeding.

I have never heard of this.

You don’t say whether you are on blood thinners, but that would factor in.

You are right though Tta, that doctors work in compartments and often have very limited knowledge outside their specialties

Same for me, bleeding enough to fill a pad several times, low iron levels, other issues too, such as abdominal pain, so my GP sent me for a colonoscopy.
To be honest, as I was awake during colonoscopy and watching the screen, I could see a very upset part of my colon where blood vessels were so close to the surface, they could burst like a blood vessel in the nose that is too close to the surface would burst.
You are right about the link between MPNs and autoimmune illness, including GI autoimmune illness like ulcerative colitis.
The colonoscopy was done in such a rush, that there was no time for me to ask about inflammation.
Someone else who had these issues told me they have inflammation in the colon, and that it took another specialist to acknowledge those issues, as they were also cleared at first colonoscopy.

I’ve had some bleeding from time to time but I also don’t drink enough water. So being dehydrated doesn’t really help me at times. But I’m due for a Colonoscopy this year so hopefully it’s nothing serious.