Many possible causes.
- Examine vomit for blood or other clues as to cause.
- If poisoning is suspected, bring a sample of the suspected poison, preferably in its original packaging, to the veterinarian.
- Gently press on abdomen to detect any abdominal pain.
- Withold all food and water until a veterinarian has been consulted.
- Abdominal pain, enlarged stomach, and nonproductive vomiting or retching are serious signs. Call veterinarian immediately.