Fast Fact Most cats will show the signs of feline leukemia within a few weeks of being exposed to the virus, but some infected cats don't show symptoms for many years.
In summary, leukemia is a serious condition that can affect cats, leading to a range of symptoms such as lethargy, weight loss, and swollen lymph nodes. As a pet owner, it is important to be aware of the signs of leukemia in cats and seek veterinary care if you suspect that your cat may be affected. Learn about the common and advanced symptoms of feline leukemia, including weight loss, lymphoma, skin lesions, anemia, and organ failure. Understand how to diagnose and manage this viral disease. How do you know if a cat has feline leukemia? Early feline leukemia symptoms are often subtle and non-specific, including lethargy, weight loss, and a poor appetite. The virus progresses through stages, with advanced FeLV signs including recurrent infections, anemia, and certain cancers. Testing is essential, as some infected cats show no symptoms of feline leukemia for months or even years. How does a cat get feline leukemia? Feline leukemia virus is spread through the saliva of the infected cat by sharing food or water dishes or when cats groom, play with, or bite each other. Since the signs and symptoms of FeLV can be like other medical conditions, the best way to diagnose it is to see your veterinarian immediately. What happens if my feline friend is diagnosed with feline leukemia virus? If your feline friend has been diagnosed with Feline Leukemia Virus (FeLV), you may be wondering what to expect next. One of the most common and serious complications of FeLV infection is lymphoma, a type of cancer that affects the lymph nodes. Can a cat lose weight if he has feline leukemia? Feline weight loss is common and can have many causes. Appetite changes in a cat are always a reason for concern, but in the case of FeLV, these changes in eating habits are often the first symptom. In the early stages of feline leukemia, some cats develop stomatitis, where their gums become very inflamed and ulcerated. Diagnosis of Leukemia in Cats Your veterinarian will complete a thorough examination of your cat. The sooner your cat begins treatment, the better. Be prepared to share information regarding when you first noticed symptoms, the symptoms you noticed and if any changes have occurred.

Although a virus is known to carry leukemia among cats, no virus carrying leukemia in humans has been isolated.In their study the researchers also note that "as many as half of the domestic cats in free-roaming populations have evidence" of some infection with feline leukemia virus.
