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Why is my dog hiccuping, smacking lips, and won't open his mouth?

Updated on September 23rd, 2025

Pet's info: Dog | Australian Cattle Dog | Male | unneutered | 1 year and 4 months old | 17 lbs

It seems like my dog has the hiccups, but at the same time he keeps smacking his lips. This has been going on all morning and I’m worried he could’ve licked or digested something very harmful. I tried giving him water, but he didn’t even want to open his mouth.

1 Answer

Most Helpful Answer

Jessica Desrosiers

Answered By Jessica Desrosiers

Veterinary Technician

Published on October 18th, 2018

It sounds like Nene may be feeling a bit nauseated or anxious. This can cause symptoms such as burping/hiccuping, licking lips, drooling, etc. Causes can be anything from GI upset, to illness, bloat, or even something stuck in the mouth or throat. If he won't let you examine his mouth at all and is refusing to eat or drink, seems painful, or in distress, having him examined by a vet ASAP is best to rule out more serious issues.
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