Dogs with blood in their stools are in the later stages and are not detoxifying, so it is best to send them to the hospital for treatment in time to avoid aggravation of the condition and life-threatening consequences. Generally, the incubation period is 3 to 5 days, and then the onset period begins. Vomiting, diarrhea, poor energy, loss of appetite, etc. will occur in the first three days. If you find that you need to be sent to the hospital for examination and treatment immediately, usually on the fourth and third days Five days is the most severe stage of the disease, and if the dog survives it, it will begin to improve.