Disease Library
A comprehensive reference covering feline diseases across every major body system — causes, symptoms, diagnosis, treatment, and prevention.
Feline Topical Insect Growth Regulator Skin Reaction
A localized skin irritation reaction that can occur following application of certain flea prevention products containing insect growth…
parasiticFeline Toxoplasmosis (Toxoplasma gondii infection)
Toxoplasmosis is caused by a common single-celled parasite for which cats are the definitive host (meaning the parasite can only complete…
respiratoryFeline Tracheal Collapse
A condition where the trachea (windpipe) loses its normal rigid structure and partially collapses during breathing, genuinely much more…
urinaryFeline Transitional Cell Papilloma
A benign growth arising from the bladder lining, genuinely important to distinguish from the malignant transitional cell carcinoma covered…
emergency traumaFeline Traumatic Injury (Including Vehicular Trauma)
Physical trauma from events like being struck by a vehicle, falls, or other significant impacts — a leading cause of emergency veterinary…
digestiveFeline Trichobezoar (Hairball) Complications
While the occasional hairball is a normal, expected part of a grooming cat's life, this entry addresses when hair accumulation becomes a…
heartFeline Tricuspid Valve Dysplasia
A congenital malformation of the tricuspid valve (between the right atrium and right ventricle), causing abnormal blood flow within the…
infectiousFeline Tularemia
A genuinely serious bacterial infection that cats can acquire from hunting or contact with infected wild rodents or rabbits, notable for…
earFeline Tympanic Bulla Osteomyelitis
A bone infection specifically affecting the tympanic bulla (a bony chamber that's part of the middle ear structure), representing a…
heartFeline Unclassified Cardiomyopathy
A genuinely important diagnostic category for cases where heart muscle disease is clearly present but doesn't fit neatly into the more…
urinaryFeline Uncomplicated Bacterial Urinary Tract Infection
A straightforward bacterial infection of the urinary tract without an underlying structural, metabolic, or other complicating factor —…
dentalFeline Uncomplicated Crown Fracture
While complicated tooth fractures (with pulp exposure) are covered in the Fractured Teeth entry, this addresses the uncomplicated form…
kidneyFeline Unilateral Renal Agenesis
A congenital condition where one kidney fails to develop, leaving the cat with only a single functioning kidney from birth — genuinely…
respiratoryFeline Upper Respiratory Infection Complex (primarily FHV-1 and FCV)
Feline upper respiratory infection ('cat flu') is usually caused by feline herpesvirus-1 (FHV-1) and/or feline calicivirus (FCV), often in…
urinaryFeline Urachal Diverticulum
A congenital abnormality where a small pouch persists at the top of the bladder from an incompletely closed urachus (a structure connecting…
urinaryFeline Urachal Remnant
A persistent remnant of a structure that normally closes before or shortly after birth, distinct from urachal diverticulum discussed…
urinaryFeline Urate Urolithiasis
A specific type of bladder or urinary stone composed of urate crystals, distinct from the more commonly discussed struvite and calcium…
urinaryFeline Ureteral Obstruction
A blockage of one or both ureters (the tubes carrying urine from each kidney to the bladder), distinct from urethral obstruction (which…
kidneyFeline Ureteral Obstruction (Detailed)
While ureteral stones are covered in relation to urolithiasis generally, this addresses the specific, genuinely urgent complication where a…
urinaryFeline Ureteral Stricture
A narrowing of the ureter (the tube carrying urine from kidney to bladder), which can develop following inflammation, prior surgery, or in…
urinaryFeline Urethral Obstruction
A blockage of the urethra preventing urination, a genuine life-threatening emergency in cats — male cats are anatomically far more prone to…
urinaryFeline Urethral Transitional Cell Carcinoma
A malignant tumor specifically affecting the urethra, distinct from bladder-based transitional cell carcinoma covered in the Lower Urinary…
urinaryFeline Urethral Trauma
Injury to the urethra, most commonly resulting from significant trauma (like a pelvic fracture) or, less commonly, from difficult…
urinaryFeline Urinary Incontinence
Involuntary leakage of urine, distinct from behavioral inappropriate urination (a cat choosing to urinate outside the litter box) — true…