Docile and clingy cats have always been popular, especially for the elderly. If you are a careful owner, then you will find that cats often have vomiting symptoms? When the cat is found to have vomiting symptoms, the owner will be very anxious. So the cat vomit must be sick? Now let’s make an explanation for the vomiting of cats. Vomiting is a common symptom or phenomenon in cats, rather than a single disease. Vomiting is mainly caused by the strong stimulation of gastric mucosa, which leads to the occurrence of retrograde peristalsis of the stomach, accompanied by the opening of the cardia and the retrograde peristalsis of the esophagus. Vomiting is a protective reflex function of the body, which is to exclude irritant objects in the stomach. Vomiting in cats is not a pathological phenomenon, some vomiting is physiological. Cats have the habit of licking their fur. The fur is often licked into the stomach, and gradually form a hair ball in the stomach. When the hair ball reaches a certain size, it will produce enough stimulation to the gastric mucosa, and reflexively cause the cat to vomit and vomit the hair ball. This is commonly known as a cat’s physiological vomiting. In addition, cats will also vomit after eating too fast, too much and eating more grass, vegetables and other green feed, which is also physiological vomiting. When physiological vomiting occurs, the cat will eat after vomiting without any other abnormality. Vomiting caused by various pathogenic factors in cats is pathological vomiting. There are many pathogenic factors causing cat vomiting, such as viral (such as cat plague), bacterial (such as Salmonella), parasitic (such as toxoplasmosis), chemical (such as stimulating food, drugs, pesticides, toxic substances, etc.) and physical (such as too hot food or frozen food) can cause vomiting in cats. When vomiting occurs in cats, it is necessary to distinguish between physiological vomiting and pathological vomiting. If there is no other abnormality except once or twice vomiting, and most of the people who eat after vomiting are physiological vomiting, they can be ignored; if vomiting occurs frequently and lasts for a long time and does not eat, vomiting occurs after artificial infusion, and other abnormal manifestations are accompanied, such as restlessness of mind, temperature rise, diarrhea, etc., the veterinarian should be consulted for diagnosis and treatment.