There may be many reasons for dogs to have diarrhea and blood. The following are some common causes and corresponding treatment suggestions: Indigestion or gastroenteritis: Common gastroenteritis may cause dogs to have symptoms of diarrhea and blood. In this case, the dog can be given antidiarrheal drugs and anti-inflammatory drugs. Generally, the dog will return to normal after taking it for about 5 to 7 days. Parvovirus infection: If the dog is relatively small and has poor resistance and immunity, it may be infected with canine parvovirus, resulting in bloody diarrhea. In this case, you need to take your dog to a pet hospital for a clinical examination to confirm the diagnosis. After diagnosis, treatment will be carried out according to the veterinarian's recommendations.

Parasite infection: Parasitic infection in dogs may also cause diarrhea and bloody diarrhea. Normally, dogs need to be dewormed internally every three months and externally every month. If there are parasites in the dog's diarrhea, it can be diagnosed as an internal parasite infection. After diagnosis, the dog needs to be dewormed.

Swallowing foreign bodies or poisoning: If your dog has a history of swallowing foreign bodies or toxic substances, bloody diarrhea may be caused by foreign bodies, poisoning, and scratches on the digestive tract. At this time, you should seek medical treatment promptly to determine the cause and take appropriate treatment measures.