Found 101 results for:"Lethargy"
Feline Infectious Peritonitis（FIP）Mortality 95%
✓ Symptoms: Lethargy
Muscle wastingLethargyAbdominal distensionAscitesWeight LossAnorexia
Feline Mesenteric Lymph Node Lymphoma (Alimentary Lymphoma – Large Cell)（HGAL）Mortality 95%
✓ Symptoms: Lethargy
Muscle wastingLethargyWeight LossAnorexiaVomitingDiarrhea
Feline Pulmonary Adenocarcinoma (Primary Lung Tumor)（FPA）Mortality 95%
✓ Symptoms: Lethargy
LethargyWeight LossAnorexiaPolyuria / PolydipsiaDyspneaLameness
Feline Mediastinal LymphomaMortality 90%
✓ Symptoms: Lethargy
LethargyWeight LossAnorexiaVomitingPolyuria / PolydipsiaDyspnea
Feline Lily Toxicosis (Lilium and Hemerocallis Nephrotoxicity)Mortality 90%
✓ Symptoms: Lethargy
PolydipsiaLethargyHypersalivationAnorexiaVomitingTremors
Feline Ethylene Glycol Toxicosis (Antifreeze Poisoning)Mortality 90%
✓ Symptoms: Lethargy/depression
AnorexiaVomitingPolyuria / PolydipsiaSeizuresLethargy/depressionAnuria / Oliguria
Feline Renal AmyloidosisMortality 90%
✓ Symptoms: Lethargy
LethargyAscitesWeight LossAnorexiaVomitingPolyuria / Polydipsia
Feline Intestinal AdenocarcinomaMortality 85%
✓ Symptoms: Lethargy
Abdominal massLethargyHematocheziaAbdominal distensionWeight LossAnorexia
Feline Neonatal Isoerythrolysis（NI）Mortality 85%
✓ Symptoms: Lethargy/weakness
Failure to nursePale mucous membranesIcterus/jaundiceTachypneaTail-tip necrosisHemoglobinuria
Feline Mesenteric Artery Thrombosis (Non-Aortic Thromboembolism)Mortality 80%
✓ Symptoms: Lethargy
LethargyHematocheziaAbdominal distensionAnorexiaVomitingDiarrhea
Feline Fibrosarcoma (Non-Injection-Site)Mortality 75%
✓ Symptoms: Lethargy
LethargySubcutaneous massWeight LossDyspneaLamenessHalitosis
Feline Lymphoma（FL）Mortality 75%
✓ Symptoms: Lethargy
Abdominal massLethargyWeight LossAnorexiaVomitingDiarrhea
Feline Congestive Heart Failure（CHF）Mortality 70%
✓ Symptoms: Lethargy
Open-mouth breathingLethargyHeart murmurAbdominal distensionTachypnea at restWeight Loss
Feline Dysautonomia (Key-Gaskell Syndrome)Mortality 70%
✓ Symptoms: Lethargy
LethargyThird eyelid prolapseUrinary retentionWeight LossAnorexiaVomiting
Feline Saddle Thrombus-Associated Acute Kidney InjuryMortality 65%
✓ Symptoms: Lethargy/collapse
Acute vocalization/painLethargy/collapseVomitingDyspneaTachycardiaTachypnea
Feline CytauxzoonosisMortality 60%
✓ Symptoms: Lethargy
LethargyHypothermia (terminal)Pale mucous membranesFeverAnorexiaDyspnea
Feline Septic PeritonitisMortality 60%
✓ Symptoms: Lethargy
LethargyPale mucous membranesAbdominal distensionFeverAnorexiaVomiting
Feline Panleukopenia (Feline Parvovirus)（FPV / FPL）Mortality 60%
✓ Symptoms: Lethargy
Cerebellar ataxia (neonates)LethargyPale mucous membranesSudden deathSevere dehydrationAnorexia
Hypertrophic Cardiomyopathy（HCM）Mortality 50%
✓ Symptoms: Lethargy
Open-mouth breathingHind-limb paresis/paralysisLethargySudden deathHeart murmurAbdominal distension
Feline Acute Kidney Injury（AKI）Mortality 50%
✓ Symptoms: Lethargy
PolydipsiaLethargyAnorexiaVomitingDiarrheaOral Ulcers
Feline Protein-Losing Enteropathy（PLE）Mortality 50%
✓ Symptoms: Lethargy
LethargyAscitesWeight LossDyspneaDecreased appetiteChronic diarrhea
Feline Diffuse Iris Melanoma（FDIM）Mortality 41%
✓ Symptoms: Lethargy
LethargySecondary glaucomaBlepharospasmPupil irregularity (dyscoria)Iris thickening or nodularityWeight Loss
Feline Congenital Heart Disease (Ventricular Septal Defect, Tetralogy of Fallot, and Others)（CHD）Mortality 40%
✓ Symptoms: Lethargy
LethargySudden deathAscitesDyspneaTachypneaWeakness
Feline Sepsis and Systemic Inflammatory Response Syndrome（SIRS）Mortality 40%
✓ Symptoms: Lethargy
LethargyPale mucous membranesFeverAnorexiaVomitingDiarrhea
Feline Pleural Effusion (Non-Specific / Transudative and Modified Transudative)Mortality 30%
✓ Symptoms: Lethargy
LethargyAbdominal distensionWeight LossAnorexiaTachypneaMuffled heart sounds
Feline Acetaminophen ToxicosisMortality 30%
✓ Symptoms: Lethargy
LethargyFacial edemaVomitingDyspneaTachycardiaCNS depression
Feline Extrahepatic Bile Duct Obstruction（EHBDO）Mortality 30%
✓ Symptoms: Lethargy
LethargyHepatomegalyWeight LossAnorexiaVomitingDark/orange urine (bilirubinuria)
Feline Hepatic Lipidosis（FHL）
✓ Symptoms: Lethargy
Muscle wastingLethargyHepatomegalyVentral neck flexionWeight LossAnorexia
Immune-Mediated Hemolytic Anemia（IMHA）
✓ Symptoms: Lethargy
LethargySplenomegalyPigmenturiaPale mucous membranesHeart murmurFever
Feline Traumatic Diaphragmatic Hernia
✓ Symptoms: Lethargy
LethargyWeight LossAnorexiaVomitingDyspneaTachypnea
Feline Panleukopenia in Adult Cats (Non-Classical Presentation)
✓ Symptoms: Lethargy
LethargyAnorexiaLymphadenopathyVomitingSecondary infectionsLeukopenia (incidental finding)
Feline Chronic Bronchitis (Non-Allergic)
✓ Symptoms: Lethargy
Open-mouth breathingLethargyWheezingWeight LossTachypneaIncreased respiratory effort
Feline Peritoneopericardial Diaphragmatic Hernia（PPDH）
✓ Symptoms: Lethargy
LethargyIncidental finding on imagingWeight LossVomitingDyspneaTachypnea
Feline Idiopathic Cystitis（FIC）
✓ Symptoms: Lethargy
LethargyVocalization during urinationVomitingDysuria/stranguriaPollakiuriaExcessive perineal grooming
Feline Urethral Obstruction
✓ Symptoms: Lethargy
LethargyVomitingBradycardiaInappetenceStraining to urinateLicking at prepuce
Feline Giardiasis
✓ Symptoms: Lethargy
LethargyFlatulenceWeight LossVomitingDiarrheaReduced appetite
Feline Calicivirus-Associated Limping Syndrome (Acute Polyarthritis)
✓ Symptoms: Lethargy
LethargyFeverAnorexiaNasal DischargeSneezingJoint swelling
Feline Tritrichomonosis (Tritrichomonas foetus Infection)
✓ Symptoms: Lethargy
LethargyHematocheziaTenesmusWeight LossPerianal dermatitisFecal incontinence
Feline Coccidiosis (Isospora/Cystoisospora spp.)
✓ Symptoms: Lethargy
LethargyWeight LossAnorexiaVomitingDiarrheaDehydration
Feline Bite Wound Abscess and Cellulitis
✓ Symptoms: Lethargy
Pain on palpationLethargyLocalized swellingFeverAnorexiaLameness
Feline Herpesvirus-1 Infection (Feline Viral Rhinotracheitis)（FHV-1）
✓ Symptoms: Lethargy
LethargyHypersalivationFeverAnorexiaDyspneaNasal Discharge
Feline Urinary Tract Infection (Bacterial Cystitis)
✓ Symptoms: Lethargy
LethargyPerineal lickingPollakiuriaMalodorous urineStranguriaStraining to urinate
Feline Arrhythmogenic Right Ventricular Cardiomyopathy（ARVC）
✓ Symptoms: Lethargy
LethargyAscitesWeight LossSyncopeTachypneaMuffled heart sounds
Feline Meningioma
✓ Symptoms: Lethargy
Ataxia/loss of balanceLethargyHead tiltCranial nerve deficitsNasal DischargeSeizures
Feline Gallbladder Mucocele
✓ Symptoms: Lethargy
LethargyAbdominal distensionPale fecesFeverJaundiceWeight Loss
Feline Nasal Lymphoma（FeNL）
✓ Symptoms: Lethargy
LethargyExophthalmosWeight LossAnorexiaNasal DischargeSneezing
Feline Immune-Mediated Neutropenia（FIMN）
✓ Symptoms: Lethargy
LethargySplenomegalyRecurrent feverWeight LossAnorexiaLymphadenopathy
Feline Dilated Cardiomyopathy（DCM）
✓ Symptoms: Lethargy
LethargyAbdominal distensionHindlimb paresis (aortic thromboembolism)Weight LossAnorexiaDyspnea
Feline Transitional Cell Carcinoma (Urinary Bladder Neoplasia)（TCC）
✓ Symptoms: Lethargy
LethargyWeight LossPollakiuriaInappetenceStranguriaPeriuria
Feline Hypereosinophilic Syndrome（HES）
✓ Symptoms: Lethargy
PolydipsiaLethargyAbdominal effusionSplenomegalyHematocheziaHepatomegaly
Feline Vitamin D Toxicosis (Cholecalciferol Poisoning)
✓ Symptoms: Lethargy
LethargyWeight LossAnorexiaVomitingPolyuria / PolydipsiaLameness
Feline Thrombocytopenia (Non-Immune-Mediated Causes)
✓ Symptoms: Lethargy
LethargyOcular hemorrhage/hyphemaSplenomegalyPale mucous membranesMelena/hematocheziaFever
Feline Sino-Nasal and Sino-Orbital Aspergillosis
✓ Symptoms: Lethargy
LethargyChronic nasal dischargeExophthalmosWeight LossSneezingPeriorbital swelling
Feline Hyperthyroidism-Induced Proteinuric Nephropathy
✓ Symptoms: Lethargy
LethargySudden blindnessWeight LossAnorexiaVomitingDiarrhea
Feline Spinal Cord Lymphoma (Vertebral/Extradural Lymphoma)（""）
✓ Symptoms: Lethargy
LethargyTetraparesisWeight LossAnorexiaHindlimb paresisFecal incontinence
Feline Chronic Rhinosinusitis（FCRS）
✓ Symptoms: Lethargy
Open-mouth breathingLethargyChronic nasal dischargeWeight LossSneezingOcular Discharge
Feline Immunodeficiency Virus Infection（FIV）
✓ Symptoms: Lethargy
Muscle wastingLethargyFeverWeight LossAnorexiaLymphadenopathy
Feline Heartworm Disease（FHD）
✓ Symptoms: Lethargy
LethargyWeight LossAnorexiaVomitingDyspneaSyncope
Feline Hypoadrenocorticism (Addison's Disease)（FHA）
✓ Symptoms: Lethargy
LethargyWeak pulseMuscle weaknessWeight LossAnorexiaVomiting
Feline Injection-Site Sarcoma（FISS）
✓ Symptoms: Lethargy
LethargyDyspnea (if pulmonary metastasis)Weight LossAnorexiaSubcutaneous mass at injection siteSkin ulceration over mass
Feline Hyperthyroidism-Masked Chronic Kidney Disease（HM-CKD）
✓ Symptoms: Lethargy
Muscle wastingLethargyWeight LossAnorexiaVomitingPolyuria / Polydipsia
Inflammatory Bowel Disease（IBD）
✓ Symptoms: Lethargy
LethargyBorborygmiWeight LossDiarrheaDecreased appetitePolyphagia
Feline Pyelonephritis
✓ Symptoms: Lethargy
LethargyFeverWeight LossAnorexiaVomitingPolyuria / Polydipsia
Feline Mast Cell Tumor（MCT）
✓ Symptoms: Lethargy
LethargySplenomegalyAbdominal distensionWeight LossAnorexiaVomiting
Feline Acromegaly (Hypersomatotropism)（HST）
✓ Symptoms: Lethargy
LethargyHepatomegalyPolyuria / PolydipsiaNeurological SignsCardiomyopathySkin thickening
Feline Alimentary Lymphoma (Small Cell / Low-Grade)（LGAL）
✓ Symptoms: Lethargy
Muscle wastingLethargyPoor body conditionWeight LossDecreased appetiteChronic diarrhea
Feline Portosystemic Shunt (Hepatic Vascular Anomaly)（PSS）
✓ Symptoms: Lethargy
LethargyAnorexiaVomitingPolyuria / PolydipsiaSeizuresAbnormal behavior
Feline Ureteral Obstruction (Ureterolithiasis)（FUO）
✓ Symptoms: Lethargy
LethargyPoor body conditionWeight LossAnorexiaVomitingPolyuria / Polydipsia
Feline Cholecystitis (Bacterial and Necrotizing)
✓ Symptoms: Lethargy
LethargyFeverJaundiceWeight LossAnorexiaVomiting
Feline Hyperthyroidism-Associated Azotemia (Post-Treatment Renal Decompensation)
✓ Symptoms: Lethargy
Muscle wastingLethargyPale mucous membranesWeight LossAnorexiaVomiting
Feline Chronic Megacolon (Idiopathic Colonic Dysmotility)
✓ Symptoms: Lethargy
LethargyAbdominal distensionHard dry fecesTenesmusWeight LossAnorexia
Feline Tick-Borne Diseases (Ehrlichiosis and Anaplasmosis)
✓ Symptoms: Lethargy
LethargySplenomegalyPale mucous membranesFeverWeight LossAnorexia
Feline Pemphigus Foliaceus（PF）
✓ Symptoms: Lethargy
LethargySecondary bacterial infectionFeverAlopeciaPruritusPinnae crusting
Feline Histoplasmosis
✓ Symptoms: Lethargy
LethargyPale mucous membranesAbdominal distensionSkin nodules/ulcersFeverWeight Loss
Feline Diabetes Mellitus（DM）
✓ Symptoms: Lethargy
Muscle wastingLethargyHepatomegalyWeight LossAnorexiaVomiting
Feline Renal Lymphoma
✓ Symptoms: Lethargy
LethargyWeight LossVomitingPolyuria / PolydipsiaHypercalcemia signsPallor
Feline Cholangitis/Cholangiohepatitis Complex（CCHC）
✓ Symptoms: Lethargy
LethargyHepatomegalyAscitesFeverJaundiceWeight Loss
Feline Infectious Upper Respiratory Disease Complex (URI)（URI）
✓ Symptoms: Lethargy
LethargyHypersalivationFeverAnorexiaLymphadenopathyDyspnea
Feline Hemotropic Mycoplasmosis (Hemoplasmosis)（FIA）
✓ Symptoms: Lethargy
LethargySplenomegalyPale mucous membranesFeverWeight LossAnorexia
Feline Hepatocellular Carcinoma（HCC）
✓ Symptoms: Lethargy
LethargyAbdominal distensionAscitesJaundiceWeight LossAnorexia
Feline Chronic Kidney Disease（CKD）
✓ Symptoms: Lethargy
Muscle wastingLethargyWeight LossVomitingPolyuria / PolydipsiaHalitosis
Feline Chronic Enteropathy of Undetermined Etiology (Chronic Diarrhea Syndrome)
✓ Symptoms: Lethargy
Muscle wastingLethargyWeight LossVomitingDehydrationAbdominal discomfort
Feline Insulinoma (Pancreatic Beta-Cell Tumor)
✓ Symptoms: Lethargy
LethargySyncopeSeizuresWeaknessPolyphagiaMuscle trembling
Feline Aortic Stenosis and Subaortic Stenosis
✓ Symptoms: Lethargy
LethargyPale mucous membranesSudden deathHeart murmurAbdominal distensionWeight Loss
Feline Immune-Mediated Polyarthritis (Non-Erosive)（IMPA）
✓ Symptoms: Lethargy
LethargyStiffnessFeverLymphadenopathyLamenessJoint swelling
Feline Hypertension (Systemic Arterial Hypertension)（SAH）
✓ Symptoms: Lethargy
LethargySudden blindnessHeart murmurDisorientation/ataxiaMuscle weaknessWeight Loss
Feline Primary Hyperparathyroidism
✓ Symptoms: Lethargy
Palpable cervical massLethargyMuscle weaknessWeight LossAnorexiaVomiting
Feline Pheochromocytoma (Adrenal Medullary Tumor)
✓ Symptoms: Lethargy
Abdominal massLethargyWeight LossAnorexiaVomitingPolyuria / Polydipsia
Feline Cutaneous Lymphoma (Epitheliotropic and Non-Epitheliotropic)
✓ Symptoms: Lethargy
Erythematous skin patches/maculesLethargyAtypical circulating lymphocytesWeight LossLymphadenopathyDyspnea
Feline Osteosarcoma
✓ Symptoms: Lethargy
LethargySubcutaneous massLimb swellingWeight LossLamenessDysphagia
Feline Diabetic Neuropathy (Diabetic Polyneuropathy)
✓ Symptoms: Lethargy
LethargyWeight LossPolyuria / PolydipsiaHindlimb ataxiaPlantigrade stanceMuscle atrophy
Feline Cryptococcosis
✓ Symptoms: Lethargy
LethargyWeight LossAnorexiaNasal DischargeSneezingUveitis
Feline Toxoplasmosis
✓ Symptoms: Lethargy
LethargyParesis/paralysisFeverJaundiceWeight LossAnorexia
Feline Pyometra
✓ Symptoms: Lethargy/depression
Abdominal distensionFeverAnorexiaVomitingDiarrheaPolyuria / Polydipsia
Feline Pancreatitis
✓ Symptoms: Lethargy
LethargyWeight LossAnorexiaVomitingDiarrheaPolyuria / Polydipsia
Feline Blastomycosis
✓ Symptoms: Lethargy
LethargyFeverWeight LossAnorexiaLymphadenopathyDyspnea
Feline Lower Urinary Tract Disease（FLUTD）
✓ Symptoms: Lethargy
LethargyVomitingPollakiuriaVocalisation during urinationStranguriaExcessive perineal licking
Feline Hypoglycemia (Neonatal and Adult Causes)
✓ Symptoms: Weakness/lethargy
Pale mucous membranesTremblingVomitingTachycardiaSeizuresAtaxia
Feline Nasopharyngeal Stenosis（NPS）
✓ Symptoms: Lethargy
Open-mouth breathingLethargyChronic stertorIncreased inspiratory effortDyspneaNasal Discharge
Feline Hypertrophic Pyloric Gastropathy (Pyloric Stenosis)
✓ Symptoms: Lethargy
LethargyPoor body conditionDecreased appetiteWeight loss/failure to thriveDehydrationChronic vomiting
Feline Sporotrichosis
✓ Symptoms: Lethargy
LethargyNasal planum ulcerationFeverWeight LossAnorexiaLymphadenopathy