Blood in cat's stools can vary from the odd small red or pink streak to full-blown red, bloody stools. Less commonly, you may see something called melaena, which is digested blood.

6 Weird Things Your Dog’s Poop Can Tell You About Their Health first appeared on Parade Pets on Jul 12, 2025 This story was ...

Though not all colorectal cancers cause rectal bleeding, it is a common symptom. That blood in the stool that people see can be caused by a polyp—a precancerous growth—or a tumor, said Jatin Roper, MD ...

A bleeding ulcer can lead to melena if the blood has time to be digested, turning stools black and sticky. If the bleeding is rapid or severe, it may cause vomiting blood or bright red stools instead.

I am seven months post Roux-en-Y bariatric surgery. I am regularly having bloody stools. No pain. The blood is bright red, and I do eat nuts daily. The blood is contained throughout the stool. No ...

Dr. Terry Simpson, a board-certified general surgeon based in California, is sharing the stool symptom that's cause for serious concern — blood in your poop.