What’s wrong with a cat that has blood in its stool but is in good spirits?

Cats with diarrhoea and blood in the stool this is a gastrointestinal symptom, when the source of the disease does not contain systemic problems may not cause a loss of appetite and depressed mental performance. Possible causes include parasitic infections such as coccidia and trichomonas. This may also occur if there are dietary allergies.