yes if he is going more frequently and there is any red blood or mucous then that would indicate colitis. Another thing you could try is a bland diet like boiled chicken and rice. You can also look into Fortiflora which is a probiotic added to the food daily. It helps replace the good bacteria that is lost in softer stools. Also, if Buddy has not been dewormed in a while then it is always a good idea to do this. Whipworms can cause colitis.