Friend, if Cash's bottom is swollen this suggest he has been licking
the area. Very likely the blood you saw came from his rectum; he licked it off. When we see bloody stool it is a sign of inflammation in the colon (large intestines). Possible causes are: Dietary indiscretion, ingestion of a foreign body, infections, or even part of a systemic disease to name a few causes. I would have him checked by family veterinarian in the meantime this is what you can do:
1- Do not give things like Pepto Bismol or imodium.
2- Change his diet to rice (75%) and boiled boneless chicken
or ground beef (25%) until the stool is back to normal then wean him back into his regular diet.
3- Supplement with a probiotic (fortiflora), these are friendly bacterias that help with regularity. You can buy this over the counter in any pet store.
4- Follow up with family veterinarian.
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