What is a common consequence of untreated giardiasis in pets?

Untreated giardiasis in pets often leads to chronic diarrhea and weight loss due to the impact of the Giardia parasite on the animal's gastrointestinal tract. The infection can disrupt the absorption of nutrients and lead to malabsorption syndrome, which prevents proper digestion and utilization of food. As a result, pets may experience persistent diarrhea, which can further exacerbate weight loss. This condition can be particularly concerning in young or immunocompromised animals, as they are more susceptible to the severe effects of the illness.

Improved coat condition and weight gain are not typical consequences of untreated giardiasis; rather, the illness generally results in the opposite effects. Although decreased appetite can occur, it is often a secondary symptom associated with the primary issues of diarrhea and weight loss, rather than being the sole consequence. Overall, chronic diarrhea and weight loss represent the most significant and concerning outcomes of untreated giardiasis in pets.