One of the most feared complications of pancreatitis is hemodynamic instability. Luckily enough, it does not appear in more than 10% of patients, but it is a severe problem that may turn pancreatitis into a life-threatening disease. These patients may have hematemesis (the clinical name for vomiting blood) or melena (blood in their feces).
These patients with blood loss are usually pale and have anemia (low levels of red blood cells). In very severe cases, patients may display a bluish color around the belly button or a reddish color running along the flanks when there is an internal hemorrhage in the abdominal cavity.