Bloat should always be treated as a medical emergency. Bloat can kill a dog within hours after onset. The cause of bloat is unknown. Bloat can occur in dogs of any age. Bloat is not caused by diet.
Stomach rapidly expands with gas then rotates on the long axis.
If you notice any of the following signs, seek immediate help from your veterinarian. In the early stages of bloat, the dog will be very uncomfortable. You may see him pacing and whining, trying unsuccessfully to get into a comfortable position. He may seem anxious, may lick or keep staring at his stomach, and may attempt to vomit, without success. Other signs can include weakness, swelling of the abdomen, and even signs of shock.