Chihuahua With a Swollen Belly, Restless and Lethargic
Yes, this is a reason to see a vet the same day. A belly that has become rounded and tight within a day, together with restlessness and lethargy, needs to be checked. Small dogs like Chihuahuas are at much lower risk of bloat with a twisted stomach (GDV) than large, deep-chested breeds, but it can happen in any dog.
Other possible causes include gas or constipation, a blockage from something swallowed (such as a piece of rawhide or another chew), fluid in the belly, an enlarged organ, a womb infection (pyometra) or pregnancy if she isn't spayed, or in an older dog a hormone problem such as Cushing's disease. Your vet can feel her belly and take X-rays to find out.
Go to an emergency clinic right away if she retches without bringing anything up, vomits repeatedly, drools, has pale gums, breathes fast, or collapses. Our page on bloat in dogs explains the warning signs.
This is general information, not a diagnosis. Please follow your own vet's advice.
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