The symptoms you describe – white gums, lack of appetite, refusal to drink, and vomiting blood – are serious and could indicate a life-threatening condition.
Possible causes include:
* Internal Bleeding: This could be due to trauma, poisoning, or a serious medical condition like organ failure.
* Shock: Severe blood loss can lead to shock, which can be fatal if not addressed quickly.
* Poisoning: Certain toxins can cause these symptoms.
* Gastrointestinal Problems: Ulcers, tumors, or infections can cause bleeding in the stomach or intestines.
* Liver or Kidney Failure: These conditions can lead to various complications, including bleeding and loss of appetite.
Don't wait! Get your dog to a veterinarian right away. They can properly diagnose the cause and provide necessary treatment.
In the meantime, you can:
* Keep your dog calm and comfortable.
* Don't give your dog anything to eat or drink.
* If your dog is vomiting, be careful not to get any blood on yourself.
Remember, prompt veterinary care is crucial for your dog's health and survival.