TL;DR: If your cat is howling or crying while using the litter box, seek immediate veterinary care as this indicates severe pain or a life-threatening blockage. This behavior is a high-priority medical emergency that requires professional evaluation to prevent organ failure.
Why is my cat crying or howling while using the litter box?
When a cat cries out or howls while using the litter box, it is a clear sign of acute distress and significant physical pain. This behavior, often called vocal tenesmus, indicates that your cat is struggling with a serious issue in the lower gastrointestinal tract or, potentially, the urinary system. It is never normal for a cat to vocalize during elimination.
Is it an emergency if my cat is in pain while defecating?
Painful howling during defecation is considered a high-priority emergency. While the cause could be severe constipation, you must consider the following risks:
- Symptoms of straining to defecate can be indistinguishable from a life-threatening urinary blockage, particularly in male cats.
- Howling, straining, or repeatedly visiting the box without success requires immediate veterinary intervention.
- Prompt care is essential to prevent systemic toxicity or organ failure.
How can photos of my cat's litter box help the veterinarian?
Providing your veterinarian with a photo of the litter box can be a vital diagnostic tool. Visual evidence helps the clinical team in several ways:
- Images of produced stool allow doctors to check for blood, mucus, or unusual hardness.
- Photos of your cat's straining posture help determine the severity of a potential blockage.
- Visual data allows the triage nurse to prioritize your cat's care the moment you walk through the door.
Clinical Context (Merck Veterinary Manual)
Painful howling while defecating in cats may be caused by compression of the colon or rectum from a narrowed pelvic inlet (due to suboptimal healing of pelvic fractures), enlarged sublumbar lymph nodes or prostate gland, or colonic stricture secondary to trauma or neoplasia. Other potential causes include perineal hernia, foreign material, or masses. Diagnostic evaluation should include a physical examination to determine the presence of pain, a complete blood count, biochemical profile (including a serum T4 level), urinalysis, and detailed neurologic examination. Abdominal radiographs may help identify inciting factors of fecal retention, while a barium enema, ultrasonography, or colonoscopy may demonstrate obstructive lesions or predisposing causes of constipation.
Chapter: Gastroenterology, Neurology
Source: The Merck Veterinary Manual, 11th Edition (Page 381)