Disease Library
A comprehensive reference covering feline diseases across every major body system — causes, symptoms, diagnosis, treatment, and prevention.
Feline Pancreatitis
Pancreatitis is inflammation of the pancreas, an organ responsible for producing digestive enzymes and insulin. Unlike in dogs, feline…
infectiousFeline Panleukopenia Virus (FPV) infection
Feline panleukopenia (sometimes called feline distemper, though it's unrelated to canine distemper) is a highly contagious and often fatal…
skinFeline Panniculitis
Inflammation of the subcutaneous fat layer beneath the skin, presenting as firm nodules or plaques — a genuinely uncommon condition with a…
musculoskeletalFeline Panosteitis
A genuinely rare bone condition in cats causing shifting-leg lameness, much more extensively documented and diagnosed in young, growing…
neurologicalFeline Paradoxical Vestibular Syndrome
A specific, somewhat confusing variant of central vestibular disease where the head tilt direction and other lateralizing signs point…
endocrineFeline Parathyroid Carcinoma
A genuinely rare malignant tumor of the parathyroid gland, distinct from the far more common benign parathyroid adenoma that typically…
neurologicalFeline Paroxysmal Vestibular Episodes
A genuinely puzzling pattern of brief, episodic vestibular signs (loss of balance, head tilt) that resolve on their own between episodes,…
musculoskeletalFeline Patellar Fracture
A fracture of the patella (kneecap), genuinely uncommon in cats given this small, well-protected bone, typically resulting from direct…
musculoskeletalFeline Patellar Luxation
Patellar luxation is a condition where the kneecap slips out of its normal groove, causing an intermittent or persistent hindlimb…
skinFeline Pemphigus Foliaceus
An autoimmune skin condition where the body's immune system inappropriately attacks proteins that normally hold skin cells together,…
dentalFeline Perianal Fistula
Chronic, draining tracts developing in the tissue around the anus, genuinely rare in cats compared to dogs (where this condition is far…
heartFeline Pericardial Effusion
An abnormal accumulation of fluid within the pericardium (the sac surrounding the heart), which can compress the heart and impair its…
heartFeline Pericarditis
Inflammation of the pericardium (the sac surrounding the heart), distinct from pericardial effusion (fluid accumulation, covered in its own…
musculoskeletalFeline Perineal Hernia
A weakening and bulging of the muscles supporting the pelvic area near the anus, allowing abdominal or pelvic organs to potentially…
kidneyFeline Perinephric Pseudocyst (Detailed)
While perirenal pseudocyst is covered generally in its own entry, this addresses detailed considerations for this genuinely distinctive…
dentalFeline Periodontal Disease (Gingivitis and Periodontitis)
Periodontal disease is an extremely common, progressive condition where plaque and tartar buildup cause inflammation of the gums…
kidneyFeline Perirenal Pseudocyst
An accumulation of fluid around the kidney (rather than within kidney tissue itself), genuinely uncommon and notably distinct from true…
poisoning toxicologyFeline Permethrin Toxicosis
A genuinely common, entirely preventable poisoning that occurs when a dog-specific flea/tick product containing permethrin is applied to a…
poisoning toxicologyFeline Permethrin Toxicosis
Poisoning from permethrin, a pyrethroid insecticide commonly found in flea/tick products formulated specifically for dogs — cats are…
reproductiveFeline Persistent Estrus (Prolonged Heat)
A condition where a female cat remains in a prolonged heat cycle beyond the normal expected duration, most commonly related to an ovarian…
reproductiveFeline Persistent Müllerian Duct Syndrome
A genuinely rare congenital condition where structures that normally regress in male development (derived from the Müllerian ducts) instead…
eyeFeline Persistent Pupillary Membrane
A congenital condition where remnants of a membrane normally present during fetal eye development fail to fully disappear before or shortly…
respiratoryFeline Pharyngitis
Inflammation of the pharynx (throat area), which can occur alongside upper respiratory infection or, less commonly, as a more isolated…
endocrineFeline Pheochromocytoma
A genuinely rare tumor of the adrenal gland, distinct from the aldosterone-producing tumors discussed in relation to primary…