Feline Urinary Tract Infection
If your cat is a male and is not urinating this is an emergency and can die very quickly without treatment. If not caught in time they can still die even with treatment
What is Feline Lower Urinary Tract Disease?
Feline lower urinary tract disease (FLUTD) describes a variety of
conditions that affect the bladder and urethra of cats. Cats with FLUTD
most often show signs of difficulty and pain when urinating, increased
frequency of urination, and blood in the urine. Cats with FLUTD also
tend to lick themselves excessively and may urinate outside the litter
box, often on cool, smooth surfaces like a tile floor or a bathtub.
While FLUTD can occur at any age, it is usually seen in middle-aged,
overweight cats that get little exercise, use an indoor litter box, have
little or no outdoor access, or eat a dry diet. Factors such as emotional
or environment stress, multi-cat households, and abrupt changes in
daily routine may also increase the risk that a cat will develop FLUTD.
Major Signs of Feline Lower
Urinary Tract Disease include:
• straining to urinate
• urinating small amounts
• frequent and/or prolonged attempts
to urinate
• crying out while urinating
• excessive licking of the genital area
• urinating outside the litter box
• blood in the urine
Note that cats with a urethral obstruction (a blockage in the urethra,
which is the tube that carries urine from the bladder and out of the
body) will also show these signs but will pass little or no urine and
become increasingly distressed. Urethral obstruction is seen more often
in males than female cats due their longer, narrow urethra. A urethral
obstruction is an emergency and requires immediate veterinary
treatment. (See section on Urethral Obstruction.)
How is FLUTD diagnosed?
Because FLUTD has many causes, it can be difficult to diagnose. Based
on your cat’s symptoms, your veterinarian will do a physical
examination and most likely will run a urinalysis assessing urine pH
and concentration and presence of crystals, bleeding, inflammation
and infection. If the cause is still not identified, tests such as urine
culture, x-rays, blood work and additional urine tests may be
recommended.
What are the causes of FLUTD?
Urolithiasis (Urinary Stones)
One possible cause of FLUTD is the formation of urinary stones, also
called uroliths, in the bladder and/or urethra. These are collections of
minerals that form in the urinary tract of cats. X-rays or ultrasound are
usually needed to diagnose urinary stones. The most commonly seen
uroliths are calcium oxalate and struvite (magnesium ammonium
phosphate). While a special, stone-dissolving diet can be prescribed to
dissolve struvite stones, calcium oxalate stones need to be removedsurgically. If the diet fails, or if the stones form again, then surgery may
also be necessary for struvite stones. In female cats, it may also be
possible for a veterinarian to help a cat pass stones by flushing its
bladder with sterile fluids or remove small stones directly from the
bladder using a cystoscope when the cat is under anesthesia. Your
veterinarian may then recommend medication or dietary changes after
surgery to help prevent recurrence.
Urinary Infection
Infection of your cat’s urinary tract with bacteria, fungi, parasites or
possibly even viruses can cause signs of FLUTD. Although bacterial
infections are more common than fungal, parasitic or viral infections,
they are still relatively uncommon in cats. If an infection is found, your
veterinarian will probably look for another disease or problem that may
have put your cat at risk of infection. For example, uroliths and
diabetes can increase the risk of urinary tract infection.
In younger cats, bladder infections are a cause of FLUTD less than 5%
of the time because the acid content and concentration of their urine
prevents infection. Diseases such as kidney disease and diabetes are
more common in cats older than 10 years of age, and alter the acidity
and concentration of the urine—as a result, these cats are at higher
risk of infection. Urinary tract infection is a relatively common cause of
FLUTD in older cats, followed by uroliths.
The treatment for urinary infections often depends on the severity of the
infection and the organism causing the infection, and may include
fluid therapy, urinary acidifiers, and/or antibiotics.
Urethral Obstruction
The most serious problem associated with urinary function is when a
cat’s urethra becomes partly or totally blocked. These cats strain to
urinate and produce little or no urine. It can appear that the cat is
constipated and straining to pass stool, but straining in the litterbox is
more often a sign of urethral obstruction. Urethral obstruction is apotentially life-threatening condition caused either by urethral stones
or by urethral plugs (the latter are made of a soft material containing
minerals, cells, and mucus-like protein).
Male cats (neutered or intact) are at greater risk for urethral
obstruction than females because their urethra is longer and
narrower. This is a true medical emergency, and any cat suspected of
suffering from this condition must receive immediate veterinary
attention. Once the urethra becomes completely blocked, the kidneys
are no longer able to remove toxins from the blood or maintain a
balance of fluids and electrolytes in the body. Without treatment,
death frequently occurs when these imbalances lead to heart
failure—often in less than twenty-four to forty-eight hours.
Treatment of this condition involves dislodging the obstruction,
usually accomplished by flushing a sterile solution through a narrow
tube placed into the urethra. Once the obstruction is removed, further
treatment depends upon the condition of the cat. Dehydration and
electrolyte imbalances are treated with intravenous fluid therapy.
Antibiotics may be given to prevent or treat infection, and drugs that
help restore bladder function are sometimes recommended.
For cats who continue to experience urethral obstruction despite
medical treatment, there is a surgical procedure called a perineal
urethrostomy. Since side effects of this surgery can include bleeding,
narrowing at the surgical site, urinary incontinence, and a greater
incidence of urinary tract infection, it is usually considered only as a
last resort.
Feline Idiopathic Cystitis
Feline idiopathic cystitis (FIC)—also called interstitial cystitis—is the
most common diagnosis in cats less than 10 years of age with lower
urinary tract disease. The disease is not fully understood and may
involve several body systems in addition to the urinary system.
Feline idiopathic cystitis is a diagnosis of exclusion, meaning that it is
a diagnosis made after all diseases that might cause similar signs are
ruled out. There is no specific diagnostic test for FIC. Stress and diet
changes can increase the risk of FIC. As many as 40 – 50% of cats will
have another episode of FIC within one year, but veterinarians cannot
predict which cats will have relapses. The disease can be chronic and
very frustrating for the cat, the owner, and the veterinarian. The
current goals of treating cats with FIC are to decrease the severity and
frequency of episodes. There are
numerous medical treatments
that result in variable degrees of
success but often the veterinarian
will start by addressing any
behavioral issues. This may
include feeding only canned food
and reduction of stress.Other Causes
Diseases such as diabetes and hyperthyroidism (overactivity of the
thyroid gland) can cause lower urinary tract disease in cats.
Although they are much less common causes, FLUTD can also be
caused by tumors of the urinary tract, congenital abnormalities
(birth defects), or injury to the urinary tract or spinal cord.
What can I do at home to prevent future occurrences
of FLUTD?
Depending on the underlying cause for FLUTD, the clinical signs may
never, or only occasionally, reoccur. . However, recurrence is more
common with FIC. To help reduce the chances of recurrence:
• Feed small meals on a frequent basis.
• Consult with your veterinarian about the best diet for your cat.
Many commercial diets are acceptable, but some urinary
conditions respond better to specialized diets. Canned food may
be preferred.
• Provide clean, fresh water at all times.
• Provide an adequate number of litter boxes (usually one more
than the number of cats in the household) with the type of
litter that the cat(s) prefer.
• Keep litter boxes in quiet, safe areas of the house.
• Keep litter boxes clean—they should be scooped twice a day and
the litter changed weekly (or more often as needed).
• Minimize major changes in routine.
• Reduce stress.
If your cat is a male and is not urinating this is an emergency and can die very quickly without treatment. If not caught in time they can still die even with treatment
What is Feline Lower Urinary Tract Disease?
Feline lower urinary tract disease (FLUTD) describes a variety of
conditions that affect the bladder and urethra of cats. Cats with FLUTD
most often show signs of difficulty and pain when urinating, increased
frequency of urination, and blood in the urine. Cats with FLUTD also
tend to lick themselves excessively and may urinate outside the litter
box, often on cool, smooth surfaces like a tile floor or a bathtub.
While FLUTD can occur at any age, it is usually seen in middle-aged,
overweight cats that get little exercise, use an indoor litter box, have
little or no outdoor access, or eat a dry diet. Factors such as emotional
or environment stress, multi-cat households, and abrupt changes in
daily routine may also increase the risk that a cat will develop FLUTD.
Major Signs of Feline Lower
Urinary Tract Disease include:
• straining to urinate
• urinating small amounts
• frequent and/or prolonged attempts
to urinate
• crying out while urinating
• excessive licking of the genital area
• urinating outside the litter box
• blood in the urine
Note that cats with a urethral obstruction (a blockage in the urethra,
which is the tube that carries urine from the bladder and out of the
body) will also show these signs but will pass little or no urine and
become increasingly distressed. Urethral obstruction is seen more often
in males than female cats due their longer, narrow urethra. A urethral
obstruction is an emergency and requires immediate veterinary
treatment. (See section on Urethral Obstruction.)
How is FLUTD diagnosed?
Because FLUTD has many causes, it can be difficult to diagnose. Based
on your cat’s symptoms, your veterinarian will do a physical
examination and most likely will run a urinalysis assessing urine pH
and concentration and presence of crystals, bleeding, inflammation
and infection. If the cause is still not identified, tests such as urine
culture, x-rays, blood work and additional urine tests may be
recommended.
What are the causes of FLUTD?
Urolithiasis (Urinary Stones)
One possible cause of FLUTD is the formation of urinary stones, also
called uroliths, in the bladder and/or urethra. These are collections of
minerals that form in the urinary tract of cats. X-rays or ultrasound are
usually needed to diagnose urinary stones. The most commonly seen
uroliths are calcium oxalate and struvite (magnesium ammonium
phosphate). While a special, stone-dissolving diet can be prescribed to
dissolve struvite stones, calcium oxalate stones need to be removedsurgically. If the diet fails, or if the stones form again, then surgery may
also be necessary for struvite stones. In female cats, it may also be
possible for a veterinarian to help a cat pass stones by flushing its
bladder with sterile fluids or remove small stones directly from the
bladder using a cystoscope when the cat is under anesthesia. Your
veterinarian may then recommend medication or dietary changes after
surgery to help prevent recurrence.
Urinary Infection
Infection of your cat’s urinary tract with bacteria, fungi, parasites or
possibly even viruses can cause signs of FLUTD. Although bacterial
infections are more common than fungal, parasitic or viral infections,
they are still relatively uncommon in cats. If an infection is found, your
veterinarian will probably look for another disease or problem that may
have put your cat at risk of infection. For example, uroliths and
diabetes can increase the risk of urinary tract infection.
In younger cats, bladder infections are a cause of FLUTD less than 5%
of the time because the acid content and concentration of their urine
prevents infection. Diseases such as kidney disease and diabetes are
more common in cats older than 10 years of age, and alter the acidity
and concentration of the urine—as a result, these cats are at higher
risk of infection. Urinary tract infection is a relatively common cause of
FLUTD in older cats, followed by uroliths.
The treatment for urinary infections often depends on the severity of the
infection and the organism causing the infection, and may include
fluid therapy, urinary acidifiers, and/or antibiotics.
Urethral Obstruction
The most serious problem associated with urinary function is when a
cat’s urethra becomes partly or totally blocked. These cats strain to
urinate and produce little or no urine. It can appear that the cat is
constipated and straining to pass stool, but straining in the litterbox is
more often a sign of urethral obstruction. Urethral obstruction is apotentially life-threatening condition caused either by urethral stones
or by urethral plugs (the latter are made of a soft material containing
minerals, cells, and mucus-like protein).
Male cats (neutered or intact) are at greater risk for urethral
obstruction than females because their urethra is longer and
narrower. This is a true medical emergency, and any cat suspected of
suffering from this condition must receive immediate veterinary
attention. Once the urethra becomes completely blocked, the kidneys
are no longer able to remove toxins from the blood or maintain a
balance of fluids and electrolytes in the body. Without treatment,
death frequently occurs when these imbalances lead to heart
failure—often in less than twenty-four to forty-eight hours.
Treatment of this condition involves dislodging the obstruction,
usually accomplished by flushing a sterile solution through a narrow
tube placed into the urethra. Once the obstruction is removed, further
treatment depends upon the condition of the cat. Dehydration and
electrolyte imbalances are treated with intravenous fluid therapy.
Antibiotics may be given to prevent or treat infection, and drugs that
help restore bladder function are sometimes recommended.
For cats who continue to experience urethral obstruction despite
medical treatment, there is a surgical procedure called a perineal
urethrostomy. Since side effects of this surgery can include bleeding,
narrowing at the surgical site, urinary incontinence, and a greater
incidence of urinary tract infection, it is usually considered only as a
last resort.
Feline Idiopathic Cystitis
Feline idiopathic cystitis (FIC)—also called interstitial cystitis—is the
most common diagnosis in cats less than 10 years of age with lower
urinary tract disease. The disease is not fully understood and may
involve several body systems in addition to the urinary system.
Feline idiopathic cystitis is a diagnosis of exclusion, meaning that it is
a diagnosis made after all diseases that might cause similar signs are
ruled out. There is no specific diagnostic test for FIC. Stress and diet
changes can increase the risk of FIC. As many as 40 – 50% of cats will
have another episode of FIC within one year, but veterinarians cannot
predict which cats will have relapses. The disease can be chronic and
very frustrating for the cat, the owner, and the veterinarian. The
current goals of treating cats with FIC are to decrease the severity and
frequency of episodes. There are
numerous medical treatments
that result in variable degrees of
success but often the veterinarian
will start by addressing any
behavioral issues. This may
include feeding only canned food
and reduction of stress.Other Causes
Diseases such as diabetes and hyperthyroidism (overactivity of the
thyroid gland) can cause lower urinary tract disease in cats.
Although they are much less common causes, FLUTD can also be
caused by tumors of the urinary tract, congenital abnormalities
(birth defects), or injury to the urinary tract or spinal cord.
What can I do at home to prevent future occurrences
of FLUTD?
Depending on the underlying cause for FLUTD, the clinical signs may
never, or only occasionally, reoccur. . However, recurrence is more
common with FIC. To help reduce the chances of recurrence:
• Feed small meals on a frequent basis.
• Consult with your veterinarian about the best diet for your cat.
Many commercial diets are acceptable, but some urinary
conditions respond better to specialized diets. Canned food may
be preferred.
• Provide clean, fresh water at all times.
• Provide an adequate number of litter boxes (usually one more
than the number of cats in the household) with the type of
litter that the cat(s) prefer.
• Keep litter boxes in quiet, safe areas of the house.
• Keep litter boxes clean—they should be scooped twice a day and
the litter changed weekly (or more often as needed).
• Minimize major changes in routine.
• Reduce stress.