What is one risk associated with prolonged flea infestations in pets?

Prolonged flea infestations in pets can lead to anemia due to blood loss. Fleas feed on the blood of their host, and a significant number of fleas can consume a considerable amount of blood over time. This is especially concerning in young, elderly, or debilitated animals whose overall health and blood volume may already be compromised. Anemia can manifest as lethargy, pale mucous membranes, and weakness, which can severely affect a pet's quality of life.

While options that mention improved coat quality, decreased appetite, and increased exercise tolerance may be tempting to consider, they do not accurately reflect the risks associated with flea infestations. Improved coat quality is generally a result of good health and grooming rather than a complication from fleas. Decreased appetite can occur in various health conditions but isn't as directly linked to flea infestations as anemia. Increased exercise tolerance is also not a typical outcome for a pet suffering from the stress and discomfort of a flea infestation. Instead, prolonged flea infestations can lead to more serious health issues, reinforcing the significance of timely flea control.