My dog just threw up once and is lethargic. Should I take her to vet?
It sounds like Princess is unwell. She could have a GI illness, may have eaten something rotten, a foreign body, or pancreatitis. I see that she is unspayed, and an infection of the uterus called a pyometra occurs in unspayed dogs and causes these symptoms. For now, I recommend monitoring her. Withhold food for 12-24 hours, and then feed her boiled white meat chicken and white rice in small amounts several times a day for a couple of days. If she keeps that down, you can slowly add back in her normal diet. Monitor her closely for signs of a pyometra, such as more vomiting, her belly becoming swelling, extreme lethargy, and discharge from her vagina. You can also take her temperature to monitor for fever, which would be above 102.5F. If you see any of those signs I mentioned above, take her into a vet immediately. In addition, if the vomiting continues in the absence of food, she vomiting the bland diet, she develops diarrhea, she stops drinking water and start vomiting water, or she becomes very lethargic, take her into your vet right away.
Updated on September 23rd, 2025