What causes dog vomiting? Does dog vomiting have to be small?

Jul 26,2025
6Min

Dogs vomiting is due to self-protection

This kind of vomiting is mostly caused by dogs swallowing things that are more irritating to the stomach, eating too much food, eating too fast, or not eating for a long time, resulting in stomach ulcers. Discomfort. At this time, the stomach will protect itself and vomit will occur to expel the substance from the body.
In this case, the dog vomits mostly undigested food or indigestible substances. This is mainly because the dog does not chew slowly when eating, swallows the whole piece, or eats too fast. too much. Sometimes you will spit out what you have eaten, which is a normal rumination protection situation. Such as: swallowing unchewed molar sticks, eating too much food, etc.
Generally, this type of symptoms is that after vomiting out irritants or excessive food, the spirit and appetite return to normal after a period of rest. This kind of vomiting is generally nothing to worry about. It is a measure of the body's self-protection and will cause little damage to the body.

Dog vomiting is due to environmental problems

The reason for this kind of vomiting is generally a sudden change of environment, resulting in acclimatization; a sudden change of dog food, which is not adapted to the dog food; the weather turns cold , caused by catching cold and so on. This kind of vomiting may generally be accompanied by diarrhea, and the duration is related to the dog's own condition, ranging from a few hours to a day, or as long as a few days. This kind of vomiting generally does not involve a large amount of vomiting, but mostly consists of a small amount of digestive juice (the size of one to several coins, mostly yellow with foamy mucus). When there is food in the stomach, food will also be vomited.
For this type of vomiting, you can try feeding a small amount 4-6 hours after vomiting, and add probiotics to the food. If the dog's appetite is not affected and no vomiting occurs after eating, there is no need to worry; if the dog has a loss of appetite and vomits again within a short period of time after eating, it is recommended to take it to the hospital for medical treatment.

Dog vomiting is caused by foreign body obstruction

When dogs swallow large hard objects or large amounts of undigested soft substances, accumulation and blockage are formed in the gastrointestinal tract. This makes it impossible for substances to be discharged backwards, and the gastrointestinal tract is burdened for a long time. In order to reduce the burden, vomiting will occur. For example: swallowing socks, rags, bones, toys, cotton, etc.
At this time, dogs usually experience severe vomiting, frequent and large amounts. Vomiting will occur again within half an hour after eating or drinking, and all food or water will be vomited out. When some sharp foreign objects scratch the gastrointestinal mucosa, vomiting blood may occur.
With this kind of vomiting, most of the obstructions cannot be vomited out. Therefore, for this type of vomiting, it is recommended to take it to the hospital to diagnose the location of the obstruction and take corresponding treatment measures.

Dog vomiting is caused by viral or bacterial enteritis

Vomiting is caused by damage to the gastrointestinal tract caused by viruses or harmful bacteria. This type is generally more severe, with multiple episodes of continuous vomiting, and is often accompanied by diarrhea.
Because viruses and bacteria damage the mucosa and can cause gastrointestinal bleeding, in addition toIn addition to vomiting a large amount of gastric juice, you may also vomit green or brown liquid. In this case, it is recommended to take the patient to the hospital for medical treatment.

Dog vomiting is caused by parasites

It is caused by parasites growing in large numbers and damaging the gastrointestinal tract. When the symptoms are mild, they are similar to vomiting caused by environmental factors. In severe cases, vomiting parasites will appear. You should seek medical treatment promptly to identify the type of parasites and perform targeted deworming. Such as roundworms, tapeworms, hookworms, etc.
There are many causes of vomiting, and the above five are just some of the more common causes during dog breeding. Others such as poisoning, allergies, internal organ damage, internal diseases, etc. can cause dogs to vomit. Generally, more than 2 times in a month can be considered frequent. If you vomit continuously for many days, you must take your dog to the hospital for treatment.

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