“First of all, it should be clear that blood in the stool is a clinical category of symptoms, and not a single kind of disease, often a manifestation of serious diseases of the canine digestive system, pet owners should pay great attention.
I. Types of bloody stools
1. Bright red blood stool and dark red blood stool
Generally, the lower gastrointestinal tract (small intestine, colon, rectum, anus) bleeding.
2. tarry stools (black)
Usually bleeding from the upper gastrointestinal tract (esophagus, stomach, duodenum), or bleeding from the small intestine.
3. Occult blood stool
Occult blood stools can occur in all diseases that cause GI bleeding as seen under laboratory tests.
II. Main causes of bloody stools
1. Blood in the stool caused by infectious diseases
(1). Viral diseases
a. Canine microvirus infection b. Canine coronavirus infection
(2). Bacterial diseases
a. Campylobacter infection b. Salmonellosis c. Leptospira infection
2. Blood in the stool caused by parasitic diseases
a. Hookworm disease b. Whipworm disease c. Coccidioidomycosis c. Trichuris intestinalis d. Giardia
3. Blood in the stool caused by gastrointestinal dysfunction
a. Gastroenteritis b. Intussusception c. Acute colitis c. Intestinal obstruction d. Acute pancreatitis e. Hemorrhagic gastroenteritis syndrome f. Eosinophilic gastroenteritis g. Gastric bleeding h. Gastric ulcer
4. Foreign body injury blood in stool
Gastrointestinal bleeding caused mainly by foreign bodies
When the owner finds that the pet has blood in the stool should be promptly sent to the local veterinary hospital for examination and treatment, according to the specific situation for targeted and reasonable treatment.”
