What are the symptoms or signs of HHT in the gastrointestinal tract (stomach and intestines)?
HHT symptoms include unexplained anemia or low blood count, traces of blood in the stool, (although people with nosebleeds may also have blood in the stool), black (like tar) stool in the absence of iron therapy, and in extreme cases, eliminating or vomiting blood. But these symptoms rarely cause pain.