The term "cystitis" literally means inflammation of the urinary bladder. Although this term is rather general, there is a common form of cystitis, Feline Idiopathic Cystitis, which occurs in male and female cats. This disease is also known as Feline Urologic Syndrome (FUS) or Feline Lower Urinary Tract Disease (FLUTD).
What are the causes?
We are not completely sure of the cause of this problem. It is most common in young adults, with more male cats reported as signs are more noticeable. Recent statistics have shown in 50% of affected cats a cause cannot be determined despite extensive diagnostics. Of the remaining cats, 20% have bladder stones, 20% a urethral obstruction (also referred to as “blocked”), less than 5% have a true infection, and the remaining cats are affected by tumors, trauma or a combination of other factors.
Feline cystitis has been associated with environmental stress in many cats. It is currently believed that these cats have an imbalance in the way their brain controls hormones. They are especially sensitive to environmental stress, and due to cascade of hormone changes it manifests are bladder inflammation.
What are the clinical signs?
Feline cystitis can appear with a variety of clinical signs, including:
A cat need only demonstrate some of these signs to be considered affected. This syndrome has been described in cats for nearly 100 years and continues to be a common condition. The chief obstacle in eradicating this condition seems to be that any number of inflammatory conditions (infection, tumor, bladder stone, etc.) in the urinary bladder will produce the same symptoms.
How is it treated?
There are two main categories of cats affected with cystitis:
Obstructed Cats: Urinary or urethral obstruction is a true emergency in cats. Although rarely seen in females, male cats are most commonly affected due to the relatively narrow penile urethra. In these cats bladder inflammation can lead to precipitation of fine sand like material. This combines with mucous and cells from the bladder lining leading to formation of a plug that blocks the urethra (the tube leading from the bladder out of the body). Once obstructed toxins normally eliminated in the urine build up in the body and can lead to serious complications including death. Urinary obstruction is treated with removal of the blockage and fluids to flush toxins out of the body.
Non Obstructed Cats: The majority of cats affected by cystitis to do progress to urinary obstruction. For these cats, and previously obstructed cats treatment is aimed at managing the current symptoms and preventing reoccurrence. A combination of diet and environment change coupled with medications may be prescribed including:
Environmental Enrichment: For long term control of feline cystitis, environmental enrichment is the most successful treatment. Some recommendations that have been published include:
For more information on environmental enrichment, read about the Indoor Cat Initiative.
Is it likely to happen again?
Many cats have a recurrence of cystitis. A recurrence does not indicate that the current treatment is not working. These episodes can often be linked to acutely stressful situations such as visitors in the home, absence of an owner or addition of a new person or pet into the family, although many times a cause cannot be determined.
Phone: 978-952-8500