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Feline Lower Urinary Tract Disease

Brittish Shorthair Cat cuddling up to a Golden Retriever.

Feline Lower Urinary Tract Disease (FLUTD) is an umbrella term for a range of conditions affecting the bladder and/or urethra of cats. It is also sometimes referred to as FUS (Feline Urological Syndrome). The symptoms of the various conditions and disorders that are referred to as FLUTD are often very similar, so it can be difficult or even impossible to determine the exact cause of FLUTD. When no obvious underlying cause can be identified the condition is referred to as Feline Idiopathic Cystitis or FIC.


FLUTD can affect any cat, regardless of age, gender or breed. However, it appears to be more common in cats that are:

  • Overweight
  • Neutered
  • Get little exercise
  • House cats (cats who rarely/never go outside)
  • Eat only dry cat foods


There are a variety of conditions that can be the root cause of FLUTD:

  • Bacterial Infection
  • Bladder stones
  • Urethral Plug (a blockage of the urethra in male cats)
  • Damage to the urethra or bladder
  • Cancer (though this is rare)
  • Idiopathic cystitis (where no cause can be identified)

Some studies indicate that up to 60-70% of cases of FLUTD are idiopathic (arises spontaneously, with unknown causes).


Cats and kittens with Feline Lower Urinary Tract Disease can exhibit a range of symptoms:

  • Pain or difficulty when urinating
  • Urinating more frequently
  • Blood in the urine
  • Over grooming of the perineum
  • Urinating outside of the litter box or in unusual/inappropriate places
  • Inability to urinate (if your cat or kitten is straining but failing to urinate it is vital to get them to the veterinarian as soon as possible as this indicates a life-threatening blockage of the urethra)


Treatment depends on the underlying cause of FLUTD. For example, where the cause is a bacterial infection, you may want to consider using D'Mannose Pet which is effective in clearing E.Coli related UTI, particularly if antibiotics are failing. And, of course, if your cat is exhibiting any of the symptoms listed above it is best to see your veterinarian to identify the cause, if possible.

Antibiotic use in Veterinary Surgeries

Your veterinarian may be conservative with the use of antibiotics and we need to understand why...

Despite scientists saying that resistance to this last-resort antibiotic is likely to be spreading from farm animals to humans, it still remains completely legal in the UK and in most EU countries to routinely feed Colistin/Polymyxin E, (an antibiotic approved in the late 1950s for the treatment of infections) to large groups of intensively farmed animals, even when no disease has been diagnosed in any of the animals. We need the government, the European Commission and regulatory bodies like the Veterinary Medicines Directorate to respond urgently. The routine preventative use in farming of colistin, and all antibiotics important in human medicine, needs to be banned immediately.

Coilin Nunan, Scientific Adviser to the

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Anna Sawkins, Sweet Cures Founder

Anna’s Story

Sweet Cures’ Anna talks about her years long battle with cystitis and how she finally overcame it.

Sweet Cures Products

Buy Direct from Sweet Cures

Product packaging: Waterfall D-Mannose Powder Tub
Waterfall D-Mannose
50g Powder Tub

Supporting a Healthy Bladder and Urinary Tract. Resealable flat pack designed to fit through your letter box.


Product packaging: Probiotic Blend - 60 Capsules
Probiotic Blend
60 Capsules

Supports well being when consumed as part of a healthy diet. 9 strains of live bacteria, including L Rhamnosus and L Plantarum and Acidophilus, with each capsule.


Product packaging: UTI Tests - 50 x Urine Test Strips
UTI Test 5V
50 x Urine Test Strips

Easy to use at home - results within 2 minutes. 5 dedicated test indicators to monitor urine pH and infections.


Anna Sawkins, Sweet Cures Founder

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