Hematemesis

Hematemesis, or blood vomiting in dogs, can be caused by a variety of factors.

There may be a disruption in the esophageal lining or irritation of the stomach or intestines, which can cause inflammation, bleeding, and, eventually, blood ejection by vomiting.

Alternatively, the blood could result from inflammation or damage in the mouth or lungs, after which it is eaten and later vomited.

Hematemesis is a relatively common condition in dogs that can impact various systems depending on the source.

Blood in the vomit is an indication of a range of disorders and diseases in dogs.

Fresh blood, formed clots, or digested blood that looks like coffee grounds can all be seen in vomit Lack of appetite, gastrointestinal pain, and blackish, tar-like stools are also common symptoms.

A low red blood cell count (anemia) can result from vomiting blood, and further symptoms can include a heart murmur, weakness to the point of collapse, and a rapid heartbeat.

Hematemesis can be caused by a variety of metabolic, neurological, respiratory, and viral infections.

Toxins, such as household cleaners, are a common cause of hematemesis in dogs.

Hematemesis can also occur after a traumatic event, such as being hit by a car, suffering serious burns, suffering heatstroke, undergoing major surgery, being exposed to heavy metal toxins, such as iron or lead, or being bitten by a snake.

Toxic plants and chemicals can also induce blood vomiting in dogs.

Ingestion of rat poison causes abnormal blood coagulation.