Dog vomit: colour, consistency and warning signs

Yellow, clear, foamy, brown or bloody: The appearance of vomit can provide clues but is not a substitute for a diagnosis. Much more important are frequency, general condition, abdominal pain and the question of whether water remains in the stomach.

Almost every dog vomits at some point. A single event in a dog that is lively afterwards may be temporary. On the other hand, repeated vomiting, blood, severe weakness or a bloated stomach can indicate an urgent emergency.

Colour is helpful when assessed along with consistency, odour, and accompanying symptoms. Photograph the vomit in good light before removing it. This means the dog doesn't have to wait next to the spot and the veterinary practice still gets an impression.

Vomiting is often preceded by nausea, salivation, gagging and visible abdominal movements. The stomach contents are actively expelled.

When regurgitating, food or liquid usually comes back without forceful abdominal pressure. The material is often undigested and may appear tubular. Regurgitation is more likely to point to a problem with the oooesophagus or swallowing. Coughing and breathing problems may also occur.

The distinction is important for the investigation. A video of the process may help.

Green colour can come from eaten grass, plant material, or dyes. Depending on the mixture, bile can also appear yellow-green.

Occasional grass eating is normal for many dogs. Frequent, hasty eating of grass, repeated vomiting or other complaints need to be clarified. There is an additional risk of poisoning with unknown plants.

Yellow foam or fluid often contains bile. This can occur on an empty stomach, for example early in the morning. But it can also be related to stomach irritation, feeding errors, inflammation or other illnesses.

If yellow vomit recurs, it's not just the feeding time that should be changed. An examination will clarify whether there is a medical cause.

Clear fluid can be water, saliva, or gastric juice. White foam is often caused by air and mucus. A single event can be mild.

On the other hand, repeated gagging with just a little foam is alarming, especially if the dog's stomach appears larger or the dog is restless. Gastric torsion can start like this and requires immediate help.

Brown colour may come from leftover food. Very dark material with a granular structure resembling coffee grounds may contain digested blood. A strong odour similar to faeces can occur in the event of an intestinal obstruction, but is not certain proof.

Very dark, unusual, or repeated brown vomit should be photographed and quickly evaluated by a vet.

Bright red blood may come from the mouth, ooesophagus, or stomach. Small red streaks may appear after forceful retching, but are still a reason for consultation.

Large amounts of blood, blood clots, or dark granular material are urgent. Black tar-like faeces can also indicate bleeding in the digestive tract.

Note:

Save suspicious packaging, plant remains or a swallowed object of the same type. Never induce vomiting on your own. With sharp objects, corrosive substances or certain poisons, this can cause additional damage.

Do not automatically withhold water. However, a dog that feels nauseous may vomit again after drinking too much at once. Ask the veterinary practice how you should proceed before the examination. Puppies, seniors and dogs with kidney, heart or metabolic diseases need an individual recommendation particularly early on.

Do not give any medicine from the medicine cabinet. Some active ingredients that humans tolerate well are dangerous for dogs.

A single episode of vomiting can also be relevant in a very young, old or seriously ill dog.

The colour of the vomit provides clues but does not determine the diagnosis. Frequency, general condition, abdominal pain, blood and the ability to retain water are at least as important. If in doubt, an early call to the veterinary practice will help more than long observation.