What can be a potential complication of untreated fecaliths in animals?

Untreated fecaliths, which are hardened masses of feces, can lead to significant complications in animals, the most notable being obstruction of the intestines. When these fecaliths become too large or their positioning causes a blockage in the intestinal tract, they impede the normal passage of digested material. This obstruction can result in severe gastrointestinal distress, including vomiting, abdominal pain, and potentially life-threatening conditions such as perforation of the intestines, which may lead to peritonitis if not addressed promptly.

In contrast, the other options do not accurately describe outcomes associated with untreated fecaliths. Improved digestion and increased energy levels would not be expected as fecaliths can actually lead to digestive problems. Difficulty breathing is unrelated to gastrointestinal issues and is not a direct consequence of fecaliths. Therefore, recognizing the potential for intestinal obstruction as a complication of untreated fecaliths is essential for ensuring proper veterinary care and management of affected animals.