Constipation is the retention of feces in the large intestine due to any of the following reasons:

  • Dehydration
  • Anal sac disease
  • Presence of foreign body in the colon
  • Disease involving the spine or pelvic canal

This is more common in cats rather than dogs. Pets having constipation defecate from little to no feces and may experience abdominal pain.  Radiographs of the abdomen after physical examination are required to make a conclusive statement regarding the diagnosis. Treatment includes treating the primary cause along with the increased intake of dietary fibers, rehydration, and providing stool softeners.