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Health library

Pet diseases, explained simply

Symptoms, causes, prevention and clear guidance on when a vet visit cannot wait.

1,699 conditions

Parvovirus

critical

Parvovirus is a highly contagious viral disease affecting dogs, often critical and requiring immediate treatment.

infectiousdog

Pasteurellosis

moderate

Pasteurellosis is a bacterial infection affecting pets; consult a vet promptly.

infectiousdogscatsrabbits

Pasteurellosis (Pasteurella spp. infection)

moderate

Pasteurellosis affects pets like cats and dogs, causing respiratory issues. Always consult a vet for diagnosis and treatment.

infectiousdogscatsrabbits

Patellar Luxation

mild to severe

Patellar Luxation is a common knee issue in pets causing lameness and joint pain.

musculoskeletaldogcat

Patent Ductus Arteriosus

severe

Patent Ductus Arteriosus (PDA) is a serious heart defect in pets, often seen in puppies and kittens. Early detection is crucial.

cardiovasculardogscats

Pendulous Crop

moderate

Pendulous crop is a digestive condition in birds where the crop becomes enlarged and fails to empty properly, causing food stagnation.

digestivebirdparrotcockatiel

Pentastomiasis

moderate

Pentastomiasis is a parasitic infection affecting pets, causing respiratory issues. Consult your vet for diagnosis and treatment.

parasiticdogscatsreptiles

Pentastomiasis (Pentastomid infection)

moderate

Pentastomiasis is a parasitic infection caused by tongue worms that primarily affects reptiles but can infect mammals including dogs and cats.

parasiticdogcatsnake

Pentastomiasis in snakes

moderate

Pentastomiasis is a parasitic infection in snakes caused by tongue worms that primarily affects the respiratory system and can be transmitted to humans.

parasiticsnakeslizardscrocodilians

Periodontal Disease

mild to severe

Periodontal disease in pets is a common dental issue causing gum inflammation and tooth loss.

infectiousdogscats

Periodontal Disease (Dogs & Cats)

moderate

Periodontal disease is a progressive bacterial infection affecting the gums and supporting structures of teeth in dogs and cats.

infectiousdogcat

Periodontal Disease in Dogs

severe

Periodontal disease in dogs affects gums and teeth, leading to serious health issues if untreated.

digestivedogcat

Peripheral Neuropathy

moderate

Peripheral neuropathy affects nerves outside the brain and spinal cord, causing weakness, pain, and sensory changes in pets' extremities.

neurologicaldogcatrabbit

Perosis (slipped tendon)

moderate

Perosis, or slipped tendon, is a musculoskeletal disorder in poultry, causing leg deformities and mobility issues.

musculoskeletalchickensturkeysother poultry

Pet Dental Disease

moderate

Pet dental disease affects teeth and gums, causing pain, infection, and tooth loss if untreated. Early intervention prevents serious complications.

infectiousdogcatrabbit

Pet Diabetes Mellitus

moderate

Diabetes mellitus is a chronic metabolic disorder affecting pets' ability to regulate blood sugar levels, requiring lifelong management.

metabolicdogcatferret

Pet Obesity

moderate

Pet obesity is a serious metabolic condition affecting over 50% of pets, leading to diabetes, arthritis, and reduced lifespan without proper management.

metabolicdogcatrabbit

Physaloptera spp. infection

moderate

Physaloptera spp. infection affects pets' digestive systems causing vomiting and weight loss.

parasiticdogscats

Pigeon circovirus infection

severe

Pigeon circovirus infection affects pigeons, causing severe immune system issues. Not zoonotic.

infectiouspigeon

Pigeon Pox

moderate

Pigeon Pox is a viral disease affecting birds. Symptoms include lesions and nodules on the skin.

infectiouspigeonsother birds

Pinworm infection

mild

Pinworm infection in pets is a mild parasitic condition affecting their intestinal tract.

parasiticdogcathorse

Pinworm infection (Syphacia spp.)

mild

Pinworm infection in pets, caused by Syphacia spp., affects rodents such as mice and rats, leading to mild symptoms. Consult a vet for proper treatment.

parasiticrodents

Pinworm infestation

mild

Pinworm infestation affects horses and rabbits, causing itching and discomfort due to parasitic worms.

parasitichorsesrabbits

Pinworm infestation (Syphacia spp.)

mild

Pinworm infestation in pets is a common parasitic issue affecting rodents and can cause discomfort and digestive issues.

parasiticratsmicehamsters