Esophagitis, esophageal varices, gastritis, cirrhosis or gastric ulcers for example, may bleed and produce<unk><unk>  vomitus. When unaccompanied by melena, hematemesis or a fall in hemoglobin with corresponding urea rises and creates an unstable reaction, and other causes of<unk><unk>  vomitus need to be elucidated; for example, gastric stasis, bowel obstruction or ileus, that can cause oxidised food material to be vomited.<unk>  iron supplements can also mimic<unk><unk> s to the untrained eye. Diseases such as Ebola, yellow fever, viral hepatitis, haemophilia B, fatty liver disease and cancers of stomach, pancreas, esophagus and, rarely, retrograde jejunogastric intussusception might also be the reason behind<unk><unk>  vomitus. When attributed to peptic inflammation, use of nonsteroidal anti-inflammatory drugs (NSAIDs) and selective serotonin reuptake inhibitors (SSRIs) are commonly implicated. These drugs can interfere with the stomach's natural defenses against the strongly acidic environment, causing damage to the mucosa that can result in bleeding. Therefore, it is recommended that these class of drugs be taken with food or on a full stomach. Other causes of inflammation may be due to severe gastroesophageal reflux disease, Helicobacter pylori gastritis, portal hypertensive gastropathy or malignancy. When bright red blood is vomited, it is termed hematemesis. Hematemesis, in contrast to<unk><unk>  vomitus, suggests that upper gastrointestinal bleeding is more acute or more severe, for example due to a Mallory–Weiss tear, gastric ulcer or Dieulafoy's lesion, or esophageal varices. This condition may be a medical emergency and urgent care may be required. Oxidized blood from an upper gastrointestinal bleed can also be excreted in stool. It produces blackened, "tarry" stools known as melena.
Coffee ground vomiting
Fecal vomiting
Drooling
Hyperchlorhydria
Odynophagia
Pagophagia
Phytobezoar
Achlorhydria