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(20)🤮Digestive(59)💨Respiratory(43)🚽Urinary(9)🌿Skin & Coat(53)🦴Mobility(20)🍽️Eating & Drinking(46)👁️Eyes & Ears(50)🩺Chronic & Systemic(80)🐾Behavior(11)

Showing 1–24 of 50 articles found

🐈Cat HealthJul 5, 2026

👁️Eyes & Ears

Cat Drooling: Causes, Warning Signs, and When to Worry

New or one-sided drooling in a cat usually means mouth pain, nausea, or a toxin. Learn the common causes and the red flags that mean see a vet now.

🐰Rabbit HealthJul 5, 2026

👁️Eyes & Ears

Rabbit Ear Mites (Psoroptes cuniculi): Crusty Ears, Head Shaking, and Scratching Signs

Thick brown crusts, head shaking, and ear scratching in rabbits point to ear mites (ear canker). Learn the signs, treatment, and when it's urgent.

🐕Dog HealthJun 30, 2026

👁️Eyes & Ears

Aural Hematoma in Dogs: Signs, Causes, and When to See a Vet

A blood-filled swelling on a dog's ear flap, usually from head-shaking due to an ear infection or allergy.

🐈Cat HealthJun 28, 2026

👁️Eyes & Ears

Cat Conjunctivitis and Eye Discharge: Signs and Treatment

Cat eye discharge is usually from herpesvirus or bacteria, not allergies. Learn the causes, treatments, and warning signs of corneal damage.

🐈Cat HealthJun 26, 2026

👁️Eyes & Ears

Cat Corneal Sequestrum: Dark Eye Plaque Signs and Surgery

A corneal sequestrum is a dark brown plaque of dead tissue unique to cats. Learn the signs, which breeds are at risk, and surgical treatment options.

🐰Rabbit HealthJun 25, 2026

👁️Eyes & Ears

Rabbit Thymoma: Bulging Eyes and Breathing Signs

Thymoma is a chest tumor in rabbits that causes bulging eyes from vein compression and labored breathing. Learn the signs, diagnosis, and why early surgery

🐰Rabbit HealthJun 24, 2026

👁️Eyes & Ears

Rabbit E. cuniculi: Head Tilt and Neurologic Signs Explained

E. cuniculi causes sudden head tilt, rolling, and eye and kidney disease in rabbits. Learn the signs, how it's diagnosed, and treatment with fenbendazole.

🦜Bird HealthJun 24, 2026

👁️Eyes & Ears

Cockatiel Conjunctivitis: Eye Swelling and Discharge Signs

Cockatiel conjunctivitis causes red, swollen eyes, discharge, and excessive blinking. Learn the causes — including vitamin A deficiency — and when to see a

🐈Cat HealthJun 23, 2026

👁️Eyes & Ears

Feline Aural Polyps: Ear Signs and Treatment Options

Feline inflammatory aural polyps cause chronic ear discharge, head shaking, and sometimes Horner's syndrome. Learn the signs, diagnosis steps, and treatmen

🐰Rabbit HealthJun 20, 2026

👁️Eyes & Ears

Rabbit Head Tilt: Signs, Causes & When to See a Vet

Rabbit head tilt (torticollis) often signals E. cuniculi or inner-ear infection. Learn the signs, rolling emergency cues, and treatment costs.

🐕Dog HealthJun 18, 2026

👁️Eyes & Ears

Dog Red Eye: Conjunctivitis Signs & When to Call the Vet

A red eye in a dog can signal conjunctivitis, glaucoma, uveitis, or dry eye. Learn to distinguish causes, which need ER care, and treatment costs in the US

🐕Dog HealthJun 18, 2026

👁️Eyes & Ears

Dog Excessive Drooling: Causes & When to Worry

Sudden excessive drooling in dogs can signal oral pain, nausea, toxin ingestion, or GDV emergency. Learn causes, warning signs, and when to call the vet to

🐾Pet HealthJun 15, 2026

👁️Eyes & Ears

Leopard Gecko Eye Problems: Infection, Retained Shed & Treatment

Closed eyes, discharge, and swelling in leopard geckos signal infection, retained shed, or abscess. Learn home care limits and when the vet is needed.

🐈Cat HealthJun 13, 2026

👁️Eyes & Ears

Green Eye Discharge in Cats: Causes & When It's Urgent

Green eye discharge in cats signals bacterial or viral infection. Learn the causes, what home care can and can't do, and when to see the vet urgently.

🐰Rabbit HealthJun 12, 2026

👁️Eyes & Ears

Rabbit Ear Mites: Signs, Treatment & When to Worry

Rabbit ear mites cause thick crusty buildup and head shaking. Learn the signs, safe treatments, and when mites lead to dangerous middle ear infection.

🐰Rabbit HealthJun 11, 2026

👁️Eyes & Ears

Rabbit Head Tilt (Vestibular Disease): Signs & Care

Rabbit head tilt signals vestibular disease from E. cuniculi or ear infection. Learn the signs, treatment, recovery, and costs.

🐹Hamster HealthJun 11, 2026

👁️Eyes & Ears

Hamster Eye Problems & Glaucoma: Signs and Care

Hamster eye problems include glaucoma, bulging, and infection. Learn the signs, causes, treatment, and when to see an exotic vet.

🐈Cat HealthJun 9, 2026

👁️Eyes & Ears

Cat Ear Mites: Dark Discharge, Head Shaking & Care

Ear mites are the most common cause of ear disease in cats. Learn the dark discharge and scratching signs, treatment, and how to prevent reinfection.

🐹Hamster HealthJun 8, 2026

👁️Eyes & Ears

Hamster Ear Infection: Head Tilt, Discharge & Treatment

Ear infections in hamsters cause head tilting, balance loss, and scratching. Inner ear disease affects the vestibular system and needs prompt antibiotic tr

🐈Cat HealthJun 7, 2026

👁️Eyes & Ears

Cat Uveitis: Cloudy Eye, Causes and Treatment

Cat uveitis causes eye cloudiness, squinting, and iris color changes. It signals systemic disease. Learn signs, causes like FIP or FIV, and treatment optio

🐹Guinea Pig HealthJun 5, 2026

👁️Eyes & Ears

Guinea Pig Pea Eye: That Swelling Under the Eye

Pea eye is a usually harmless bulge under a guinea pig's lower eyelid. Learn how to tell it from a serious eye problem and when it actually needs a vet.

🐕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.

🐹Guinea Pig HealthJun 4, 2026

👁️Eyes & Ears

Guinea Pig Ear Mites: Symptoms, Treatment, Cross-Species Risk

Guinea pig ear mites cause head shaking, brown ear debris, and scratching. Ivermectin clears most cases; rabbit and cat housemates need treating too.

🐕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.