Feline Lower Urinary Tract Disease
Også kendt som: FLUTD, Feline Urological Syndrome, FUS, Feline Idiopathic Cystitis, FIC, Idiopathic Feline Lower Urinary Tract Disease, iFLUTD
Kort sagt
Feline Lower Urinary Tract Disease (FLUTD) is a common and potentially life-threatening condition affecting a cat's bladder and urethra. Learn to recognize the signs of urinary distress, understand how vets diagnose and treat this complex syndrome, and discover strategies to prevent recurrences.

TL;DR. Umbrella term for bladder/urethra disorders in cats, from painful inflammation to life-threatening urethral blockage needing emergency care.
FLUTD affects the bladder and narrow urethra.
Hvad er det?
FLUTD covers any disorder of the bladder or urethra. Many young to middle-aged cats have feline idiopathic cystitis (FIC) with no single identifiable cause. Male cats can develop complete urethral obstruction from plugs, crystals, or debris: a true emergency.
Årsager og risikofaktorer
Crystals/stones, plugs, behavioral/environmental stress, low water intake, dry-food-heavy diets, dirty litter setups, inter-cat conflict, and obesity. Higher susceptibility reported in Himalayan, Persian, Egyptian Mau, and Siamese.
Tegn at holde øje med
- Pollakiuria, dysuria, stranguria, hematuria (common)
- Periuria (urinating outside the box) and genital licking (common)
- Vomiting, hiding, anorexia, lethargy (occasional)
- Owners often mistake straining for constipation.

Straining in the litter box is a primary warning sign.
Hvordan dyrlæger diagnosticerer
Palpate bladder (large firm bladder suggests obstruction). Urinalysis, culture when indicated, radiographs/ultrasound for stones.
Behandling
Obstruction: emergency catheterization, fluids, analgesia, correct electrolytes. Non-obstructive FIC: pain control, environmental enrichment (MEMO), more water, litter hygiene, diet trials as directed. Treat stones/infection specifically when present.
Prognose
Good for many non-obstructive flares with environment and diet changes; recurrence is common. Obstruction outlook depends on speed of relief and kidney/heart complications.
Forebyggelse
Support water intake, reduce stress, provide enough clean litter boxes, control weight, seek care early for straining.
Hvornår ringe til dyrlægen
Emergency if a cat strains without producing urine, cries in the box, becomes lethargic, or vomits with a firm bladder. Do not wait.
Kilder
- Source references as in the English master article.
My highlights & notes
Tegn og symptomer
Racer med højere risiko
Hvordan det diagnosticeres
- Abdominal Radiography
- Abdominal Ultrasonography
- Contrast cystourethrography
- Cystoscopy
- Electrocardiogram
- Palpation of the bladder
- Serum biochemical panel
- Urinalysis
- Urine bacterial culture
Behandlingsmetoder
Behandling skal ordineres af en autoriseret dyrlæge. Specifikke doser vises bevidst ikke.
Ofte stillede spørgsmål
What is Feline Lower Urinary Tract Disease?
Feline Lower Urinary Tract Disease (FLUTD) is a common and potentially life-threatening condition affecting a cat's bladder and urethra. Learn to recognize the signs of urinary distress, understand how vets diagnose and treat this complex syndrome, and discover strategies to prevent recurrences.
What are the symptoms of Feline Lower Urinary Tract Disease?
Frequent licking at the genital area、Blood in urine、Painful or difficult urination、increased frequency in attempts to urinate、periuria、Pollakiuria、Straining to urinate、urination in unusual locations
How is Feline Lower Urinary Tract Disease diagnosed?
Abdominal Radiography、Abdominal Ultrasonography、Contrast cystourethrography、Cystoscopy、Electrocardiogram、Palpation of the bladder
How is Feline Lower Urinary Tract Disease treated?
Behandling skal ordineres af en autoriseret dyrlæge. Specifikke doser vises bevidst ikke.
Kilder
- Internal Medicine 5th · p. 732
- Current Techniques in Small Animal Surgery, 5th Edition (VetBooks.ir) · p. 515
- Internal Medicine 5th · p. 731
- Current Techniques in Small Animal Surgery, 5th Edition (VetBooks.ir) · p. 515
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