All Pet Conditions & Diseases
61 conditions covered — browse by species or body system.
Dog (16)
Canine Parvovirus (Parvo)
A highly contagious and life-threatening viral disease in dogs, especially puppies. Causes severe vomiting and bloody diarrhea. Immediate veterinary care is critical.
Canine Hip Dysplasia
A common inherited orthopedic condition where the hip joint develops abnormally, causing pain, lameness, and eventually arthritis. Most common in large breed dogs.
Acute Gastroenteritis in Dogs
Sudden inflammation of the stomach and intestines causing vomiting and diarrhea. Can range from mild dietary indiscretion to a serious condition requiring hospitalization.
Otitis Externa (Ear Infection) in Dogs
Inflammation of the external ear canal, extremely common in dogs especially those with floppy ears. Can be caused by bacteria, yeast, allergies, or foreign bodies.
Canine Distemper
A highly contagious and often fatal viral disease affecting the respiratory, gastrointestinal, and nervous systems. Vaccination is highly effective at prevention.
Kennel Cough (Infectious Tracheobronchitis)
A highly contagious respiratory infection causing a characteristic dry, hacking cough. Often compared to the common cold in humans. Usually self-limiting but can progress to pneumonia in vulnerable dogs.
Canine Pancreatitis
Inflammation of the pancreas causing severe abdominal pain, vomiting, and potentially life-threatening systemic complications. Can be acute (sudden) or chronic.
Canine Osteoarthritis (Degenerative Joint Disease)
Progressive, irreversible degeneration of joint cartilage affecting up to 25% of all dogs. Most common in senior and large-breed dogs. Management focuses on pain control and maintaining mobility.
Giardiasis in Dogs
A protozoal intestinal infection caused by Giardia duodenalis. Common in puppies and dogs in group settings. Causes chronic intermittent diarrhea and can be transmitted to humans.
Canine Heartworm Disease
A potentially fatal parasitic disease transmitted by mosquitoes. Adult worms live in the heart and pulmonary arteries, causing severe damage. Prevention is safe, effective, and vastly cheaper than treatment.
Cranial Cruciate Ligament (CCL) Tear in Dogs
The most common orthopedic injury in dogs — equivalent to an ACL tear in humans. Causes sudden or progressive hind limb lameness. Most dogs require surgical stabilization for the best long-term outcome.
Patellar Luxation in Dogs
A condition where the kneecap (patella) dislocates from its normal groove. Most common in small and toy breeds. Can range from occasional skipping to permanent lameness requiring surgery.
Canine Atopic Dermatitis (Environmental Allergies)
The most common allergic skin disease in dogs, affecting 10-15% of the canine population. Genetically predisposed dogs develop hypersensitivities to environmental allergens like pollen, dust mites, and molds. Causes intense itching and recurrent skin/ear infections.
Food Allergy (Cutaneous Adverse Food Reaction) in Dogs
An immune-mediated reaction to dietary proteins, causing skin disease and/or gastrointestinal signs. Often looks identical to environmental allergies. Diagnosis requires a strict elimination diet trial — there is no reliable blood or saliva test.
Idiopathic Epilepsy in Dogs
The most common chronic neurological disorder in dogs, characterized by recurrent seizures with no identifiable underlying cause. Typically begins between 1-5 years of age. Manageable with anticonvulsant medication in most cases.
Hypothyroidism in Dogs
The most common endocrine disease in dogs, caused by insufficient thyroid hormone production. Leads to a slowed metabolism affecting nearly every body system. Easily diagnosed and treated with daily medication.
Cat (15)
Feline Lower Urinary Tract Disease (FLUTD)
A common and potentially life-threatening syndrome in cats involving inflammation of the bladder and urethra. Can cause urinary blockage in male cats, which is a medical emergency.
Chronic Kidney Disease (CKD) in Cats
A progressive, irreversible loss of kidney function that is one of the most common diseases in older cats. Early detection and consistent management can significantly extend quality life.
Feline Infectious Peritonitis (FIP)
A once-fatal viral disease caused by a mutated feline coronavirus. Historically a death sentence, but now treatable with antiviral therapy (GS-441524/Remdesivir). Early detection is critical.
Feline Hyperthyroidism
The most common endocrine disease in older cats, caused by a benign thyroid tumor overproducing thyroid hormone. Causes weight loss despite ravenous appetite. Highly treatable.
Feline Diabetes Mellitus
A common endocrine disorder where the body cannot properly regulate blood sugar. Most cats have Type 2-like diabetes associated with obesity. With proper management, many cats achieve diabetic remission.
Feline Panleukopenia (Feline Distemper)
A highly contagious and often fatal viral disease — the feline equivalent of canine parvovirus. Causes severe destruction of white blood cells and intestinal lining. Vaccination is highly protective.
Feline Asthma (Allergic Bronchitis)
A chronic inflammatory respiratory condition similar to human asthma. Affects 1-5% of cats. Causes coughing, wheezing, and difficulty breathing. Manageable with proper treatment.
Feline Chronic Gingivostomatitis (FCGS)
A severely painful, chronic inflammatory condition of the mouth. Cats develop an exaggerated immune response to dental plaque. Often requires full-mouth tooth extraction for relief.
Feline Pancreatitis
Inflammation of the pancreas, often occurring alongside intestinal and liver disease (triaditis). Unlike dogs, cats often show vague signs — lethargy and decreased appetite rather than vomiting.
Heartworm-Associated Respiratory Disease (HARD) in Cats
Cats are atypical hosts for heartworm, but even a single worm can cause severe, potentially fatal respiratory disease. Prevention is essential — there is no approved adulticide treatment for cats.
Feline Leukemia Virus (FeLV)
One of the most important infectious diseases of cats worldwide. A retrovirus that suppresses the immune system and causes cancer (lymphoma, leukemia). Infected cats may live years with good management but are highly contagious to other cats.
Feline Immunodeficiency Virus (FIV)
A lentivirus (similar to HIV in humans) that progressively weakens the cat's immune system. Cats can live many healthy years with FIV before becoming immunocompromised. NOT transmissible to humans.
Feline Upper Respiratory Infection (Cat Flu)
Extremely common in cats, especially in shelters and multi-cat environments. Most often caused by feline herpesvirus (FHV-1) and calicivirus (FCV). Similar to the common cold in humans but can be serious in kittens and immunocompromised cats.
Feline Hepatic Lipidosis (Fatty Liver Disease)
The most common liver disease in cats. Occurs when an anorexic cat mobilizes excessive fat stores, overwhelming the liver. A potentially fatal consequence of a cat not eating. Aggressive nutritional support is lifesaving.
Constipation and Megacolon in Cats
A condition where the colon becomes dilated and loses the ability to contract effectively, causing severe constipation. Can be dietary, behavioral, or idiopathic. In severe cases, the colon becomes permanently damaged and requires surgical removal.