Pet Health Library

Vet-reviewed guides to pet symptoms and conditions — what's normal, what's not, and when to see a vet.

All (1031)🐕 Dogs (223)🐈 Cats (231)🐰 Rabbits (146)🐹 Guinea Pigs (99)🐹 Hamsters (82)🦜 Birds (87)🦎 Reptiles (37)🐾 Ferrets (43)

All topics 🚨Emergency(10)🤮Digestive(25)💨Respiratory(7)🚽Urinary(2)🌿Skin & Coat(11)🦴Mobility(8)🍽️Eating & Drinking(13)👁️Eyes & Ears(13)🩺Chronic & Systemic(17)🐾Behavior(5)

Showing 73–96 of 223 articles found

🐕Dog HealthJun 6, 2026

Dog Hip Dysplasia Signs: Pain, Surgery, and Prognosis

Hip dysplasia causes swaying gait, difficulty rising, and chronic hindlimb pain in dogs. Learn the signs, diagnosis, and treatment options.

🐕Dog HealthJun 6, 2026

Dog Parvovirus Symptoms: Signs, Timeline, and Survival

CPV-2 causes vomiting, bloody diarrhea, and collapse in unvaccinated dogs. Know the warning signs and when to rush to the ER.

🐕Dog HealthJun 5, 2026

Old Dog Vestibular Disease: Sudden Head Tilt and Wobble

A senior dog with a sudden head tilt, wobbling, and darting eyes is scary but often vestibular disease, not a stroke. Learn the signs and what mimics it.

🐕Dog HealthJun 5, 2026

Dog Luxating Patella: Skipping Steps and Knee Slips

A skipping gait in small dogs often means a luxating patella, a kneecap that slips out of place. Learn the grades, treatment, and when surgery helps.

🐕Dog HealthJun 5, 2026

🩺Chronic & Systemic

Dog Addison's Disease: The Great Pretender's Symptoms

Addison's disease in dogs mimics many illnesses with vague, shifting signs. Learn the warning signs, the crisis that lands dogs in the ER, and the outlook.

🐕Dog HealthJun 4, 2026

Dog Megaesophagus Treatment Options: Bailey Chair to Sildenafil

Megaesophagus management uses vertical feeding, treatment of underlying causes, and sildenafil. Aspiration pneumonia is the leading killer.

🐕Dog HealthJun 4, 2026

Dog Leptospirosis Vaccine: Why Annual Boosters Matter

The 4-serovar lepto vaccine protects 12 months, not 3 years. Here's who needs it, side effects in small dogs, and what the vaccine prevents.

🐕Dog HealthJun 4, 2026

👁️Eyes & Ears

Dog Dry Eye (KCS): Symptoms, Schirmer Test, Treatment

Dry eye in dogs is immune-mediated tear gland destruction causing chronic discharge and corneal damage. Twice-daily cyclosporine drops save vision.

🐕Dog HealthJun 3, 2026

Dog Hemangiosarcoma Symptoms: The Collapse You Can't Ignore

Sudden collapse, pale gums, or a swollen belly in an older large-breed dog can mean hemangiosarcoma — here's how to recognize it fast.

🐕Dog HealthJun 3, 2026

Dog Pulmonic Stenosis Signs: When a Puppy Murmur Means Surgery

Pulmonic stenosis is the 2nd most common congenital heart defect in dogs. Here's what murmurs, fainting, and balloon valvuloplasty actually mean.

🐕Dog HealthJun 3, 2026

👁️Eyes & Ears

Dog ACL Tear Symptoms: Sudden Back-Leg Lameness Explained

Sudden non-weight-bearing back-leg lameness in a dog often means a torn cruciate — here's how to recognize it and what surgery costs.

🐕Dog HealthJun 3, 2026

Dog Discospondylitis Signs: Spine Infection That Mimics Back Pain

Discospondylitis is bacterial infection of the disc and vertebral endplates. Here's how to spot the pattern in a stiff, painful dog and when to test for Br

🐕Dog HealthJun 3, 2026

Dog Evans Syndrome Signs: When IMHA and ITP Hit Together

Evans syndrome combines immune-mediated anemia and thrombocytopenia in dogs. Here's how to spot the pattern and why early ER care matters so much.

🐕Dog HealthJun 2, 2026

Dog Glaucoma Symptoms: Red Painful Eye Emergency Signs

Dog glaucoma is a same-day emergency: a red, cloudy, painful eye with a fixed pupil. Here's what to look for and which breeds are at highest risk.

🐕Dog HealthJun 2, 2026

Dog Lyme Nephritis Signs: Why Retrievers Are at Highest Risk

Lyme nephritis is a rare but often fatal kidney complication of Lyme disease in dogs. Labradors and goldens are at highest risk — here are the signs to act

🐕Dog HealthJun 2, 2026

🚨Emergency

Dog Tracheal Collapse Stages: Grade I-IV Explained

Dog tracheal collapse is graded I through IV. The grade determines whether medical management, a stent, or surgery is right — here is how each stage looks.

🐕Dog HealthJun 1, 2026

Dog Megaesophagus: Signs, Causes, and Feeding Tips

Megaesophagus causes regurgitation and aspiration pneumonia risk. Upright feeding, a workup for myasthenia gravis, and prompt pneumonia care matter most.

🐕Dog HealthJun 1, 2026

🩺Chronic & Systemic

Dog Addison's Disease: Symptoms, Diagnosis, and Treatment

Vague waxing-waning illness, collapse, or a high potassium reading should trigger an ACTH stim. Addison's in dogs is fully treatable when caught.

🐕Dog HealthJun 1, 2026

Dog Protein-Losing Enteropathy (PLE): Signs and Treatment

PLE is a serious cause of chronic diarrhea, weight loss, and low blood protein. Yorkies and Soft Coated Wheatens are over-represented.

🐕Dog HealthMay 31, 2026

Dog IMHA: Symptoms, Diagnosis, and Survival Odds

Immune-mediated hemolytic anemia (IMHA) is a sudden, dangerous attack on a dog's red blood cells — pale gums and weakness are the first warnings.

🐕Dog HealthMay 31, 2026

Dog Histiocytoma: The Young-Dog Bump That Usually Disappears

A fast-growing pink lump on a young dog is often a benign histiocytoma — most resolve on their own in 1 to 3 months, but a vet should confirm.

🐕Dog HealthMay 31, 2026

Dog Brucellosis Symptoms: A Bacterial Infection Owners Should Know

Canine brucellosis spreads through breeding and can infect people too — testing matters for breeders, rescues, and anyone adopting an intact dog.

🐕Dog HealthMay 30, 2026

Dog Vestibular Disease: Head Tilt, Wobbling, and Recovery

Sudden head tilt and stumbling in an older dog is scary but often not a stroke — it's usually vestibular disease, and most dogs recover.

🐕Dog HealthMay 30, 2026

🩺Chronic & Systemic

Dog Cushing's Disease: Symptoms, Tests, and Treatment

Dog Cushing's looks like normal aging — but it's a treatable disease. Excessive drinking, panting, and a pot belly are red flags.