TL;DR: Straining to defecate, or tenesmus, is a common sign of gastrointestinal irritation or blockage that requires a vet visit if it lasts more than 24 hours or is accompanied by vomiting and lethargy.
What does it mean if my dog is straining to defecate?
- Medical professionals call this behavior tenesmus.
- Your pet may frequently squat, hunch their back, or appear to push without producing any stool.
- They may only pass small amounts of liquid or mucus, which can indicate irritation or a partial blockage rather than typical diarrhea.
How urgent is it if my puppy is straining to defecate?
- Straining is generally a medium urgency level if your puppy is otherwise happy, eating, and drinking.
- Schedule a non-emergency vet visit and monitor your pet closely if they are acting normally.
- Seek immediate emergency medical attention if the straining is accompanied by a painful or bloated abdomen, repeated vomiting, lethargy, or if no stool has been produced for over 24 hours.
How can photos and videos help a vet diagnose my puppy's straining?
- Clear photos of any produced stool allow the vet to evaluate consistency, color, and the presence of parasites or foreign material.
- A short video of the straining behavior helps the vet determine if the issue is gastrointestinal or a more critical emergency, such as straining to urinate.
Clinical Context (Merck Veterinary Manual)
In dogs or puppies straining to defecate, a physical examination should be performed to determine the presence of perineal hernia, foreign material, pain, or masses. Plain abdominal radiographs can help identify inciting factors of fecal retention and the nature of the retained feces. A CBC, biochemical profile including a serum T4 level, urinalysis, and detailed neurologic examination should be completed in cases of chronic or recurring constipation. Mild constipation can often be managed with dietary adjustments, ensuring access to water, providing high-fiber diets, and using suppository laxatives, though long-term laxative use should be avoided unless absolutely necessary. Pediatric rectal suppositories such as dioctyl sodium sulfosuccinate, glycerin, and bisacodyl can be used for mild constipation, and mild to moderate or recurrent constipation may require enemas with warm tap water or isotonic saline, or manual extraction of impacted feces. Surgical intervention should be considered if medical therapy is unsuccessful, especially in the face of persistent pain unresponsive to analgesics, persistent tachycardia, progressive abdominal enlargement, or increased peritoneal fluid protein and/or nucleated cell count.
Chapter: Gastroenterology
Source: The Merck Veterinary Manual, 11th Edition (Page 381)