Talk with a doctor if you have any symptoms of a stomach ulcer. Even though discomfort may be mild, ulcers can worsen if they aren’t treated. Bleeding ulcers can become life threatening.

Platelet aggregation is impaired in acidic environments, and hence blood clots that form on the surface of peptic ulcers ... with symptoms and signs of upper-gastrointestinal bleeding who received ...

The use of sclerosants (including absolute alcohol) in injection therapy for bleeding ulcers should, however, be discouraged: extensive and uncontrolled tissue necrosis caused by sclerosants ...

There are also signs that your stomach ulcer has become very serious. These include: dark, tar-like stool sudden very sharp abdominal pain vomiting blood If you experience any of these symptoms ...