
Cat scratching, an seemingly innocent act by our beloved felines, can sometimes lead to more than just superficial scratches. In this blog, we will delve deeper into cat scratching and the hidden risks it may pose, with special attention to the much-discussed cat scratch fever.
Cat scratch fever is a condition that affects both cats and humans. Let’s unravel the mysteries behind this term, starting from the basics.
What is cat scratch fever?
Cat scratch fever, formally known as Bartonellosis, is an infectious disease caused by the Bartonella henselae bacterium. This bacterium has a fascinating relationship with cats, where they act as the primary source. In the following topics, we will delve into the definition of cat scratch fever, the specific causative agent, and how this bacterium makes its way from cats to humans.
The Centers for Disease Control (CDC) in the United States conducted research on this uncommon disease, analyzing data between 2005 and 2013. According to USA Today, there are approximately 12,000 cases of this rare disease in the U.S. each year, with 500 people requiring hospitalization.
Cat scratch fever is an infectious disease that develops after exposure to the Bartonella henselae bacterium, naturally occurring in the salivary glands of infected cats. Although cats take center stage in this narrative, humans can inadvertently end up in a supporting role through a simple scratch or bite.
Cause: Bartonella henselae Bacterium
The culprit behind cat scratch fever is the bacterium Bartonella henselae, which multiplies in the mucous membranes of cats. This bacterium finds its way to humans through fleas. Transmission to humans occurs through direct contact with infected cats or through the bite or scratch of a cat that is infected via fleas. Even an apparently innocent lick or a loving scratch can inadvertently open the door for this bacterial intruder into the human body.
Symptoms of cat scratch fever in cats
The symptoms can vary and are not always equally clear, but here are some common signs:
- Lymph node swelling: Cat scratch fever can lead to enlargement of the lymph nodes, especially in the area around the head, neck, and front legs. This enlargement is often palpable and can be observed as lumps under the skin.
- Lethargy: Infected cats may become lethargic and less active. A decrease in interest in playing and exploring is a possible sign of illness.
- Fever: Cats can develop fever in response to the infection. Fever can contribute to the overall malaise of the animal.
Loss of appetite: Like in humans, cat scratch fever in cats can result in reduced appetite. This can lead to weight loss in prolonged infections. - Vomiting and diarrhea: Some infected cats may exhibit gastrointestinal symptoms, such as vomiting and diarrhea. However, these symptoms can also be caused by other conditions.
It is important to know that cat scratch fever is usually mild in cats and spontaneously resolves without specific treatment. Rarely do cats develop severe complications due to this infection. Nevertheless, if the symptoms persist, worsen, or if owners are concerned about their cat’s health, it is advisable to consult the veterinarian for an accurate diagnosis and appropriate treatment.
Symptoms of cat scratch fever in humans
Here are some symptoms of cat scratch fever in humans:
- Swelling and redness: Immediately after a scratch or bite, there may be swelling and redness on the skin. This area can feel warm and be painful.
- Lymph node swelling: One of the characteristic symptoms of cat scratch fever is the enlargement of lymph nodes near the scratch or bite location. These lymph nodes can be sensitive or painful.
- Fever: Some patients may experience fever, which can vary in severity. Fever may be accompanied by other flu-like symptoms such as fatigue and malaise.
- Headache: Patients with cat scratch fever may experience headaches due to the infection. This can range from mild to severe headaches.
- Fatigue: Infected individuals may suffer from fatigue and a general feeling of malaise. This is often seen as a response to the immune system fighting the infection.
- Skin lesions: Sometimes, skin lesions may develop, such as small pimples or sores at the site of the scratch or bite. These lesions can persist for several weeks.
- Loss of appetite: Some people may experience a reduced appetite due to the illness. This can lead to weight loss during the infection period.
In most cases, the symptoms of cat scratch fever are mild and self-limiting, meaning they improve on their own without specific treatment. However, in some cases, especially in individuals with a weakened immune system, symptoms may be more severe, and it is advisable to consult a doctor in such instances.

Treatment options for cat scratch disease
Treatment options for cat scratch disease mainly involve the use of antibiotics. Once the infection is identified, doctors often prescribe antibiotics to halt the spread of the Bartonella henselae bacterium.
The importance of early treatment should not be underestimated, as swift intervention is crucial to minimize complications and promote full recovery. Acting quickly can reduce both the duration and impact of symptoms, improving the health of both humans and cats.
To prevent cat scratch disease, taking precautions when handling cats is vital. Additionally, after a scratch or bite, maintaining effective hygiene habits is essential. This includes thoroughly cleaning and disinfecting the wound, for example, with Betadine.
Keeping your cat healthy
The well-being of your cat is of great importance, and a few simple precautions can have a significant impact on its health and happiness. Here are some points that are essential for your cat’s health.
- Physical health: A cat tree provides your cat with the opportunity to engage in its natural scratching behavior. This not only helps maintain healthy nails and mental well-being but also aids in stretching and exercising muscles. Additionally, it keeps your furniture intact, reducing the need to buy a new couch every week.
- Hygiene: Choosing the right cat litter is crucial for your cat’s hygiene. Cats are naturally clean animals, and a clean litter box promotes a healthy toileting routine, preventing potential health issues such as urinary tract infections.
- Prevention of behavioral problems: The absence of a suitable scratching spot can lead to behavioral problems like anxiety or aggression in cats. Providing a scratching post helps prevent these issues and promotes a positive relationship between you and your cat. Safety: By giving your cat a designated place to scratch and fulfill its needs, you minimize the risk of accidents in the house. A well-maintained litter box and scratching post contribute to a safe and healthy environment for both you and your cat.
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Disclaimer: Petrebels is not a veterinarian or behavior expert: all content, information, and tips on this blog are intended to inspire and have an informative nature. If your cat has complaints or problems, and you are uncertain about your cat’s health, always consult a veterinarian or a behavior expert.