Pet Symptom Checker
Browse 411 symptoms across 10 body systems to identify potential health conditions in your pet. This tool covers 68 conditions affecting dogs, cats, birds, fish, reptiles, and small mammals.
Behavioral (19 symptoms)
- Lethargy — associated with 11 conditions: Obesity, Diabetes Mellitus, Polycystic Kidney Disease, Pancreatitis, GI Stasis, Dropsy, Chronic Kidney Disease, Dehydration, Feline Asthma, Columnaris, Velvet Disease
- Lethargy and depression — associated with 2 conditions: Hepatic Lipidosis, Pyometra
- Decreased activity or reluctance to exercise — associated with 1 condition: Hip Dysplasia
- Lethargy and reduced activity — associated with 1 condition: Hypertrophic Cardiomyopathy
- Lethargy in advanced cases — associated with 1 condition: Fin Rot
- Lethargy and mental dullness — associated with 1 condition: Hypothyroidism
- Restlessness and pacing — associated with 1 condition: Gastric Dilatation-Volvulus
- Pre-ictal behavioral changes — associated with 1 condition: Epilepsy
- Lethargy and weakness — associated with 1 condition: Metabolic Bone Disease
- Decreased activity — associated with 1 condition: Osteosarcoma
- Waxing and waning lethargy — associated with 1 condition: Addison's Disease
- Decreased activity and apathy — associated with 1 condition: Canine Cognitive Dysfunction
- Increased anxiety — associated with 1 condition: Canine Cognitive Dysfunction
- Hyperactivity and restlessness — associated with 1 condition: Hyperthyroidism
- Destructive behavior (targeting exit points) — associated with 1 condition: Separation Anxiety
- Pacing and restlessness — associated with 1 condition: Separation Anxiety
- Reptiles: prolonged gestation, lethargy, visible straining without egg passage — associated with 1 condition: Dystocia
- Restlessness and discomfort — associated with 1 condition: Bloat (Gastric Dilatation)
- Restlessness at night — associated with 1 condition: Mitral Valve Disease
Gastrointestinal (42 symptoms)
- Loss of appetite — associated with 9 conditions: Hypertrophic Cardiomyopathy, Pancreatitis, Osteosarcoma, Dropsy, Swim Bladder Disease, Dehydration, Columnaris, Velvet Disease, Pyometra
- Weight loss — associated with 9 conditions: Polycystic Kidney Disease, Psittacine Beak and Feather Disease, Dental Malocclusion, Osteosarcoma, Addison's Disease, Chronic Kidney Disease, Inflammatory Bowel Disease, Dehydration, Mitral Valve Disease
- Vomiting — associated with 5 conditions: Polycystic Kidney Disease, Chronic Kidney Disease, Hepatic Lipidosis, Portosystemic Shunt, Pyometra
- Drooling — associated with 3 conditions: Dental Disease, Hepatic Lipidosis, Heatstroke
- Decreased appetite — associated with 3 conditions: Polycystic Kidney Disease, Chronic Kidney Disease, Inflammatory Bowel Disease
- Abdominal distension — associated with 3 conditions: GI Stasis, Pyometra, Mitral Valve Disease
- Excessive drooling — associated with 2 conditions: Gastric Dilatation-Volvulus, Portosystemic Shunt
- Lethargy and loss of appetite — associated with 1 condition: Ich (White Spot Disease)
- Weight gain without increased appetite — associated with 1 condition: Hypothyroidism
- Abdominal distension (ascites) — associated with 1 condition: Dilated Cardiomyopathy
- Loss of appetite and weight loss — associated with 1 condition: Dilated Cardiomyopathy
- Unproductive retching or attempts to vomit — associated with 1 condition: Gastric Dilatation-Volvulus
- Abdominal pain — associated with 1 condition: Gastric Dilatation-Volvulus
- Weight loss despite good appetite — associated with 1 condition: Diabetes Mellitus
- Increased appetite (polyphagia) — associated with 1 condition: Diabetes Mellitus
- Lethargy and decreased appetite due to pain — associated with 1 condition: Glaucoma
- Vomiting (more common in dogs) — associated with 1 condition: Pancreatitis
- Abdominal pain (prayer position) — associated with 1 condition: Pancreatitis
- Diarrhea — associated with 1 condition: Pancreatitis
- Abdominal tenderness — associated with 1 condition: Pancreatitis
- ... and 22 more symptoms
Cardiovascular (19 symptoms)
- Exercise intolerance — associated with 6 conditions: Dilated Cardiomyopathy, Brachycephalic Airway Syndrome, Subaortic Stenosis, Feline Asthma, Tracheal Collapse, Mitral Valve Disease
- Heart murmur on auscultation — associated with 1 condition: Hypertrophic Cardiomyopathy
- Weakness or collapse — associated with 1 condition: Dilated Cardiomyopathy
- Irregular heart rhythm — associated with 1 condition: Dilated Cardiomyopathy
- Rapid heart rate — associated with 1 condition: Gastric Dilatation-Volvulus
- Weakness and collapse — associated with 1 condition: Gastric Dilatation-Volvulus
- Cyanosis (blue gums) with exertion — associated with 1 condition: Brachycephalic Airway Syndrome
- Collapse during exercise or excitement — associated with 1 condition: Brachycephalic Airway Syndrome
- Collapse (Addisonian crisis) — associated with 1 condition: Addison's Disease
- Advanced: caval syndrome, ascites, collapse — associated with 1 condition: Heartworm Disease
- Rapid heart rate (tachycardia) — associated with 1 condition: Hyperthyroidism
- Heart murmur — associated with 1 condition: Hyperthyroidism
- Heart murmur (often detected at first vaccination) — associated with 1 condition: Subaortic Stenosis
- Syncope (fainting) during exercise — associated with 1 condition: Subaortic Stenosis
- Collapse (if septic) — associated with 1 condition: Pyometra
- Cyanosis in severe episodes — associated with 1 condition: Tracheal Collapse
- Collapse — associated with 1 condition: Heatstroke
- Heart murmur (often detected years before symptoms) — associated with 1 condition: Mitral Valve Disease
- Fainting (syncope) — associated with 1 condition: Mitral Valve Disease
Urinary (14 symptoms)
- Increased thirst and urination — associated with 6 conditions: Polycystic Kidney Disease, Cushing's Disease, Chronic Kidney Disease, Hyperthyroidism, Portosystemic Shunt, Pyometra
- Blood in urine (hematuria) — associated with 2 conditions: Feline Lower Urinary Tract Disease, Von Willebrand Disease
- Increased thirst (polydipsia) — associated with 1 condition: Diabetes Mellitus
- Increased urination (polyuria) — associated with 1 condition: Diabetes Mellitus
- Enlarged kidneys (palpable) — associated with 1 condition: Polycystic Kidney Disease
- Fecal and urinary incontinence (late stage) — associated with 1 condition: Degenerative Myelopathy
- Loss of bladder/bowel control — associated with 1 condition: Intervertebral Disc Disease
- Frequent attempts to urinate — associated with 1 condition: Feline Lower Urinary Tract Disease
- Urinating outside the litter box — associated with 1 condition: Feline Lower Urinary Tract Disease
- Crying while urinating — associated with 1 condition: Feline Lower Urinary Tract Disease
- Complete inability to urinate (obstruction - EMERGENCY) — associated with 1 condition: Feline Lower Urinary Tract Disease
- Sudden death (particularly during exertion) — associated with 1 condition: Subaortic Stenosis
- Excessive bleeding during heat cycles — associated with 1 condition: Von Willebrand Disease
- Bladder stones (ammonium biurate) — associated with 1 condition: Portosystemic Shunt
Musculoskeletal (34 symptoms)
- Stiffness after rest — associated with 3 conditions: Hip Dysplasia, Elbow Dysplasia, Cruciate Ligament Disease
- Difficulty rising — associated with 3 conditions: Degenerative Myelopathy, Cruciate Ligament Disease, Wobbler Syndrome
- Muscle weakness — associated with 2 conditions: Addison's Disease, Cushing's Disease
- Muscle atrophy of affected leg — associated with 2 conditions: Legg-Calve-Perthes Disease, Cruciate Ligament Disease
- Difficulty rising from a lying position — associated with 1 condition: Hip Dysplasia
- Bunny-hopping gait when running — associated with 1 condition: Hip Dysplasia
- Lameness in the hind legs — associated with 1 condition: Hip Dysplasia
- Loss of muscle mass in the thighs — associated with 1 condition: Hip Dysplasia
- Audible clicking sound from the hip — associated with 1 condition: Hip Dysplasia
- Intermittent skipping or hopping on the affected leg — associated with 1 condition: Patellar Luxation
- Sudden lameness that resolves quickly — associated with 1 condition: Patellar Luxation
- Bowlegged stance — associated with 1 condition: Patellar Luxation
- Chronic lameness in severe grades — associated with 1 condition: Patellar Luxation
- Joint stiffness — associated with 1 condition: Obesity
- Forelimb lameness that worsens with exercise — associated with 1 condition: Elbow Dysplasia
- Swelling around the elbow joint — associated with 1 condition: Elbow Dysplasia
- Swaying gait — associated with 1 condition: Degenerative Myelopathy
- Loss of muscle mass in hind limbs — associated with 1 condition: Degenerative Myelopathy
- Tremors and muscle twitching — associated with 1 condition: Metabolic Bone Disease
- Dogs (disseminated): lameness, back pain, fever, weight loss, organ failure — associated with 1 condition: Aspergillosis
- ... and 14 more symptoms
Respiratory (25 symptoms)
- Rapid breathing — associated with 3 conditions: Columnaris, Bloat (Gastric Dilatation), Mitral Valve Disease
- Rapid or labored breathing — associated with 2 conditions: Hypertrophic Cardiomyopathy, Dilated Cardiomyopathy
- Respiratory distress — associated with 2 conditions: Ich (White Spot Disease), Tracheal Collapse
- Open-mouth breathing — associated with 2 conditions: Respiratory Infections, Feline Asthma
- Labored breathing — associated with 2 conditions: Respiratory Infections, Subaortic Stenosis
- Difficulty breathing — associated with 1 condition: Obesity
- Coughing (especially at night) — associated with 1 condition: Dilated Cardiomyopathy
- Noisy breathing (stertor and stridor) — associated with 1 condition: Brachycephalic Airway Syndrome
- Snoring — associated with 1 condition: Brachycephalic Airway Syndrome
- Birds: difficulty breathing, tail bobbing, voice change, weight loss, lethargy — associated with 1 condition: Aspergillosis
- Dogs (nasal): chronic nasal discharge, sneezing, facial pain, depigmentation of nares — associated with 1 condition: Aspergillosis
- Nasal discharge — associated with 1 condition: Respiratory Infections
- Sneezing or wheezing — associated with 1 condition: Respiratory Infections
- Dogs: persistent cough, exercise intolerance, fatigue, decreased appetite, weight loss, heart failure — associated with 1 condition: Heartworm Disease
- Cats: coughing, asthma-like attacks, vomiting, weight loss, sudden death — associated with 1 condition: Heartworm Disease
- Mediastinal: difficulty breathing, facial swelling — associated with 1 condition: Lymphoma
- Wet form: abdominal distension (ascites), difficulty breathing (pleural effusion), persistent fever — associated with 1 condition: Feline Infectious Peritonitis
- Coughing (often mistaken for hairballs) — associated with 1 condition: Feline Asthma
- Wheezing — associated with 1 condition: Feline Asthma
- Increased respiratory effort — associated with 1 condition: Feline Asthma
- ... and 5 more symptoms
General/Systemic (183 symptoms)
- Heat intolerance — associated with 2 conditions: Obesity, Brachycephalic Airway Syndrome
- Often asymptomatic in early stages — associated with 2 conditions: Hypertrophic Cardiomyopathy, Polycystic Kidney Disease
- Clamped fins — associated with 2 conditions: Ich (White Spot Disease), Velvet Disease
- Rapid gill movement — associated with 2 conditions: Ich (White Spot Disease), Velvet Disease
- Bleeding gums — associated with 2 conditions: Dental Disease, Von Willebrand Disease
- Bradycardia — associated with 2 conditions: Hypothyroidism, Addison's Disease
- Hunched posture — associated with 2 conditions: Intervertebral Disc Disease, GI Stasis
- Fever — associated with 2 conditions: Pancreatitis, Pyometra
- Distended abdomen — associated with 2 conditions: Swim Bladder Disease, Bloat (Gastric Dilatation)
- Reluctance to climb stairs or jump — associated with 1 condition: Hip Dysplasia
- Reluctance to jump or exercise — associated with 1 condition: Patellar Luxation
- Cracking or popping sound from the knee — associated with 1 condition: Patellar Luxation
- Visible excess body fat — associated with 1 condition: Obesity
- Inability to feel ribs easily — associated with 1 condition: Obesity
- Loss of waist definition — associated with 1 condition: Obesity
- Reduced exercise tolerance — associated with 1 condition: Obesity
- Reduced range of motion in the elbow — associated with 1 condition: Elbow Dysplasia
- Outward rotation of the paw — associated with 1 condition: Elbow Dysplasia
- Reluctance to extend the elbow fully — associated with 1 condition: Elbow Dysplasia
- Reluctance to navigate in dim light — associated with 1 condition: Progressive Retinal Atrophy
- ... and 163 more symptoms
Dermatological (33 symptoms)
- Recurrent skin infections — associated with 2 conditions: Hypothyroidism, Cushing's Disease
- Poor coat condition — associated with 2 conditions: Polycystic Kidney Disease, Inflammatory Bowel Disease
- Red, inflamed skin — associated with 2 conditions: Allergic Dermatitis, Mite Infestation
- Reddened or inflamed fin base — associated with 1 condition: Fin Rot
- Bilateral symmetrical hair loss — associated with 1 condition: Hypothyroidism
- Dry, dull coat — associated with 1 condition: Hypothyroidism
- Thickened skin (myxedema) — associated with 1 condition: Hypothyroidism
- Possible secondary inflammation (lens-induced uveitis) — associated with 1 condition: Cataracts
- Intense itching (pruritus) — associated with 1 condition: Allergic Dermatitis
- Hair loss from scratching — associated with 1 condition: Allergic Dermatitis
- Secondary skin infections (bacterial, yeast) — associated with 1 condition: Allergic Dermatitis
- Pinecone-like scale protrusion — associated with 1 condition: Dropsy
- Reddened or ulcerated skin — associated with 1 condition: Dropsy
- Skin irritation or wounds from over-preening — associated with 1 condition: Feather Destructive Behavior
- Hair loss (bilateral, symmetrical) — associated with 1 condition: Cushing's Disease
- Thin skin — associated with 1 condition: Cushing's Disease
- Cutaneous: skin nodules or plaques — associated with 1 condition: Lymphoma
- Intense itching (sarcoptic) — associated with 1 condition: Mite Infestation
- Hair loss — associated with 1 condition: Mite Infestation
- Crusty, thickened skin — associated with 1 condition: Mite Infestation
- ... and 13 more symptoms
Neurological (15 symptoms)
- Loss of consciousness — associated with 2 conditions: Epilepsy, Heatstroke
- Sudden hind limb paralysis (thromboembolism) — associated with 1 condition: Hypertrophic Cardiomyopathy
- Generalized tonic-clonic seizures (stiffening then paddling) — associated with 1 condition: Epilepsy
- Urination/defecation during seizure — associated with 1 condition: Epilepsy
- Post-ictal confusion and disorientation — associated with 1 condition: Epilepsy
- Focal seizures (twitching of face or limb) — associated with 1 condition: Epilepsy
- Wobbling or incoordination — associated with 1 condition: Intervertebral Disc Disease
- Paralysis (severe cases) — associated with 1 condition: Intervertebral Disc Disease
- Head tilt (if middle/inner ear involved) — associated with 1 condition: Ear Infections
- Unilateral: head tilting toward hearing ear — associated with 1 condition: Deafness
- Disorientation in familiar environments — associated with 1 condition: Canine Cognitive Dysfunction
- Disorientation after eating (hepatic encephalopathy) — associated with 1 condition: Portosystemic Shunt
- Circling, head pressing, or seizures — associated with 1 condition: Portosystemic Shunt
- Staggering and disorientation — associated with 1 condition: Heatstroke
- Seizures — associated with 1 condition: Heatstroke
Ophthalmologic (27 symptoms)
- Night blindness (nyctalopia) - earliest sign — associated with 1 condition: Progressive Retinal Atrophy
- Dilated pupils — associated with 1 condition: Progressive Retinal Atrophy
- Increased eye shine (tapetal reflectance) — associated with 1 condition: Progressive Retinal Atrophy
- Progressive loss of day vision — associated with 1 condition: Progressive Retinal Atrophy
- Eventual complete blindness — associated with 1 condition: Progressive Retinal Atrophy
- Cloudy eyes (cataracts in dogs) — associated with 1 condition: Diabetes Mellitus
- Cloudy or bluish-white appearance of the eye — associated with 1 condition: Cataracts
- Reduced vision or blindness — associated with 1 condition: Cataracts
- Change in eye color — associated with 1 condition: Cataracts
- Red, painful eye — associated with 1 condition: Glaucoma
- Dilated, unresponsive pupil — associated with 1 condition: Glaucoma
- Enlarged eye (buphthalmos) in chronic cases — associated with 1 condition: Glaucoma
- Squinting or rubbing the eye — associated with 1 condition: Glaucoma
- Vision loss — associated with 1 condition: Glaucoma
- Eye discharge (upper tooth roots near tear duct) — associated with 1 condition: Dental Malocclusion
- Bulging eyes (exophthalmia) — associated with 1 condition: Dropsy
- Eye discharge — associated with 1 condition: Respiratory Infections
- Excessive tearing (epiphora) — associated with 1 condition: Entropion
- Mucoid or purulent eye discharge — associated with 1 condition: Entropion
- Eye redness — associated with 1 condition: Entropion
- ... and 7 more symptoms