Cat Losing Weight, Lack of Appetite, and Lethargy: What

Next, Dr. Oxygen Pet will discuss the various types of illnesses that can lead to cats losing their appetite and becoming listless.

1. Gastrointestinal Disorders

When a cat loses interest in eating, we often suspect gastrointestinal issues. Such problems can lead to difficulty in eating and a lack of energy. Common gastrointestinal issues include indigestion, which can occur if a cat overeats, leading to bloating. Pet owners should control the amount of food given to their cats or use probiotics like Puan't to help regulate their digestive systems. Another possibility is gastrointestinal inflammation, which can be triggered by changes in weather, accidental ingestion, a switch to new food, overeating, or extreme hunger. Cats with gastroenteritis may experience vomiting, abdominal pain, and a decrease in appetite.

2. Viral Infectious Diseases

Cats that contract viral infections can see a rapid decline in their immune systems, leaving their bodies vulnerable to the virus's attack. Respiratory and gastrointestinal infections can lead to a loss of appetite and a general lack of energy. Common viral infections in cats include feline distemper, rhinotracheitis, and feline coronavirus. Besides decreased appetite and listlessness, cats may also exhibit symptoms like colds, fever, vomiting, and diarrhea. Pet owners should ensure that their cats are tested and treated accordingly.

3. Internal Parasites and Hairballs

Excessive hairballs can cause a cat's intestines to slow down, leading to frequent dry heaving and hard stools that are difficult to pass. Longterm accumulation of hairballs in a cat's stomach can result in a loss of appetite and a decline in their mood. Parasites can also affect a cat's gastrointestinal health, as they may chew on the intestines, leading to bleeding in severe cases. Cats with parasites often suffer from abdominal pain, loss of appetite, and poor sleep.

4. Unresolved Estrus

Cats may experience a decrease in appetite during estrus, but this is not always the case. Some cats may not show signs of reduced appetite during this period. However, if a cat remains in estrus for an extended period without relief, it can become frustrated and listless. It is recommended that pet owners have their cats spayed or neutered after their first estrus, or find a suitable mate for them to prevent longterm health issues.

Of course, there may be other reasons for a cat's loss of appetite and listlessness, not limited to the common illnesses mentioned above. If pet owners are unable to determine the cause, they should seek veterinary care promptly to avoid missing the best treatment window.