Disease Library
A comprehensive reference covering feline diseases across every major body system — causes, symptoms, diagnosis, treatment, and prevention.
Feline End-of-Life Decline (Multi-System)
A genuinely important, sensitive topic addressing the recognizable pattern of gradual, multi-system decline that can occur in the final…
eyeFeline Entropion
An inward rolling of the eyelid margin, causing the eyelid's hair-bearing skin and eyelashes to rub against the eye's surface — this…
urinaryFeline Eosinophilic Cystitis
A genuinely rare form of bladder inflammation characterized by a specific type of inflammatory cell (eosinophils) rather than the more…
digestiveFeline Eosinophilic Enteritis
A specific form of inflammatory bowel disease characterized by eosinophil-predominant inflammation within the intestinal tract — while…
skinFeline Eosinophilic Granuloma Complex (EGC)
A group of related skin (and sometimes oral) inflammatory conditions in cats, characterized by lesions involving eosinophils (a type of…
eyeFeline Eosinophilic Keratitis
An inflammatory condition specifically affecting the cornea, characterized by a particular type of immune cell (eosinophils) infiltrating…
skinFeline Eosinophilic Plaque
A specific presentation within the Eosinophilic Granuloma Complex, causing well-defined, raised, often intensely itchy skin lesions —…
eyeFeline Episcleritis
Inflammation of the episclera (the tissue layer between the conjunctiva and the sclera, the white part of the eye), causing localized…
digestiveFeline Esophageal Diverticulum
An abnormal outpouching of the esophageal wall, genuinely uncommon in cats — can be congenital or acquired, creating a location where food…
digestiveFeline Esophageal Foreign Body
An object lodged within the esophagus rather than having reached the stomach, distinct from the gastrointestinal foreign body obstruction…
digestiveFeline Esophageal Stricture
A narrowing of the esophagus, most commonly developing as a complication of significant esophageal inflammation or injury (such as from…
digestiveFeline Esophagitis
Inflammation of the esophagus, distinct from megaesophagus (which involves widening and impaired motility) — esophagitis specifically…
poisoning toxicologyFeline Ethylene Glycol (Antifreeze) Toxicity
Poisoning from ethylene glycol, most commonly found in automotive antifreeze, causing genuinely severe, often fatal kidney damage — cats…
poisoning toxicologyFeline Ethylene Glycol (Antifreeze) Toxicosis
Poisoning from ingesting ethylene glycol, most commonly found in automotive antifreeze/coolant, and among the most dangerous common…
earFeline Eustachian Tube Dysfunction
Impaired function of the eustachian tube (the passage connecting the middle ear to the back of the nasal cavity, normally responsible for…
digestiveFeline Exocrine Pancreatic Insufficiency
A condition where the pancreas fails to produce adequate digestive enzymes, genuinely much less commonly diagnosed in cats than in dogs,…
eyeFeline Eyelid Agenesis (Coloboma)
A congenital condition where part of the eyelid fails to develop normally, most commonly affecting the upper eyelid, causing that area of…
eyeFeline Eyelid Squamous Cell Carcinoma
Squamous cell carcinoma specifically affecting the eyelid, a location where this tumor type is particularly associated with chronic sun…
neurologicalFeline Facial Nerve Paralysis
A condition affecting the nerve controlling normal facial movement, causing a characteristic drooping appearance on the affected side of…
musculoskeletalFeline Fibrodysplasia Ossificans (Progressive)
A genuinely extremely rare condition where soft tissue (muscle, tendon, ligament) progressively transforms into bone, causing severe,…
cancerFeline Fibrosarcoma
A malignant tumor arising from fibrous connective tissue, one of the more commonly diagnosed soft tissue sarcomas in cats — notable for a…
musculoskeletalFeline Fibrous Osteodystrophy
A bone condition where normal bone tissue is progressively replaced by weaker, fibrous tissue, most commonly resulting from longstanding,…
emergency traumaFeline Flail Chest
A severe chest wall injury where multiple adjacent ribs are fractured in more than one place, creating a segment of chest wall that moves…
skinFeline Flea Allergy Dermatitis (FAD)
An allergic skin reaction to proteins in flea saliva, causing symptoms disproportionate to the actual number of fleas present — a genuinely…