Pet Health Library

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

All (927)🐕 Dogs (236)🐈 Cats (202)🐰 Rabbits (116)🐹 Guinea Pigs (73)🐹 Hamsters (67)🦜 Birds (95)🦎 Reptiles (74)🐾 Ferrets (37)🐭 Chinchillas (5)🦔 Hedgehogs (4)🐿️ Sugar Gliders (3)🐟 Fish (5)🐸 Amphibians (3)

All topics 🚨Emergency(85)🤮Digestive(101)💨Respiratory(77)🚽Urinary(22)🐛Parasites(63)🌿Skin & Coat(109)🦴Mobility(61)🍽️Eating & Drinking(50)👁️Eyes & Ears(67)🦷Dental(32)🩺Chronic & Systemic(165)🐾Behavior & Training(49)🛡️Wellness & Prevention(32)🐣New Pet & Care(3)

Showing 1–24 of 927 articles

🐀Rat HealthJul 18, 2026

Rat Bumblefoot: Why Those Red Sores Appear on the Feet and What Actually Helps

Bumblefoot (ulcerative pododermatitis) is a pressure-driven foot infection in pet rats. Here's how it starts, how to fix the cage, what a vet can do, and what recovery realistically looks like.

🐟Fish HealthJul 18, 2026

Goldfish Dropsy: Why the "Pinecone" Look Is a Warning Sign, Not a Disease

Dropsy in goldfish isn't an illness you treat directly — it's fluid buildup that signals a serious internal problem. Here's how to recognize pineconing, tell it apart from bloating or a swim bladder issue, what to do first, and the honest prognosis.

🐭Gerbil HealthJul 18, 2026

🚨Emergency

Gerbil Seizures: Why They Happen, What to Do, and When to Worry

Gerbils have an inherited tendency toward brief, startle-triggered seizures. Here's what an episode looks like, what to do in the moment, and the signs that mean something else is going on.

🐭Chinchilla HealthJul 18, 2026

🚨Emergency

Chinchilla Heat Stroke: Warning Signs, Emergency First Aid, and the Temperatures That Are Actually Safe

Chinchillas evolved for cold Andean nights and cannot sweat, so heat stroke can kill them within hours. Here are the safe temperature and humidity ranges, the early signs owners miss, and the gradual-cooling first aid to start while you call a vet.

🐸Amphibian HealthJul 18, 2026

Axolotl Fungus: What the White Fuzz Means and How to Fix It

White or grey cottony fuzz on an axolotl is usually an opportunistic water mold — a sign something in the tank is wrong. Here's how to tell it apart from normal gills, what to correct first, and when to call an exotics vet.

🐿️Sugar Glider HealthJul 17, 2026

Sugar Glider Self-Mutilation: Why It Happens and How to Help

Self-mutilation in sugar gliders — over-grooming, hair loss, and biting at the tail, limbs, or genitals — is a serious welfare and medical sign, not a quirk. Here's what drives it and how to respond.

🐀Rat HealthJul 17, 2026

🩺Chronic & Systemic

Rat Mammary Tumors: The Lump Many Owners Find, and What to Do About It

The lump many rat owners find is often a mammary tumor: very common, usually a benign fibroadenoma, and found anywhere from chin to tail in both females and males. Here's why benign doesn't mean wait, how surgery and spaying help, and when to see an exotics vet.

🦔Hedgehog HealthJul 17, 2026

🤮Digestive

Hedgehog Diarrhea: Causes of Green or Loose Stool and How to Help

A calm, practical guide to diarrhea and green stool in African pygmy hedgehogs: how to tell stress-related green droppings from true diarrhea, the common causes, and the home care and warning signs that mean it's time to call your vet.

🐭Chinchilla HealthJul 17, 2026

🤮Digestive

Chinchilla Bloat: How to Spot This Emergency Early and What to Do

Chinchilla bloat is a sudden, dangerous build-up of gas that can turn fatal within hours. Here's how to recognize it early, what to do while you reach a vet, and how to prevent it.

🐟Fish HealthJul 17, 2026

🍽️Eating & Drinking

Betta Fish Not Eating? Causes and What to Do

A betta that skips meals is usually reacting to its water, not its food. Here are the most common reasons bettas stop eating — cold water, ammonia, overfeeding, stress, and illness — plus simple steps to get your fish eating again.

🦔Hedgehog HealthJul 16, 2026

🍽️Eating & Drinking

Hedgehog Not Eating? Causes, Home Care, and When It's an Emergency

Is your hedgehog not eating? The most common cause is a too-cold enclosure that triggers a dangerous hibernation attempt, but dental disease, illness, and cancer also suppress appetite. Here's how to find the cause, help at home, and know when it's an emergency.

🐟Fish HealthJul 16, 2026

🐛Parasites

Goldfish Ich (White Spot Disease): How to Spot It and Treat It Safely

Ich, or white spot disease, is a common goldfish parasite that looks like grains of salt. Here's how to recognize it, why the life cycle dictates treatment, how to clear the whole tank, and when gill involvement becomes an emergency.

🐭Gerbil HealthJul 16, 2026

🌿Skin & Coat

Gerbil Scent Gland Tumor: Spotting a Belly-Gland Lump and What to Do

Gerbils have a normal oval scent gland on the belly, but it's also their most common tumor site, especially in older males. Here's how to tell a tumor from a healthy gland or infection, and why an early vet visit and surgery give the best outcome.

🐭Chinchilla HealthJul 16, 2026

🦷Dental

Chinchilla Overgrown Teeth: Signs, Causes, and What Vets Do

Chinchillas' teeth grow for life and rely on hay to wear down. Learn why they overgrow, the hidden signs, and why prompt vet care matters.

🐸Amphibian HealthJul 16, 2026

🍽️Eating & Drinking

Axolotl Not Eating? Causes, Fixes, and When to Worry

An axolotl that stops eating is almost always telling you something about its tank. Learn the water-quality, temperature, and impaction causes behind axolotl anorexia, plus how to tempt a reluctant eater and when to call an exotic vet.

🐿️Sugar Glider HealthJul 15, 2026

🍽️Eating & Drinking

Sugar Glider Not Eating: Causes, Home Care, and When It's an Emergency

A sugar glider that stops eating can crash fast. Here are the most common reasons—from an unbalanced diet and low calcium to dental disease, stress, and pain—plus what to do at home and when to rush to an exotic vet.

🐀Rat HealthJul 15, 2026

💨Respiratory

Rat Respiratory Infection: Signs, Causes, and Treatment for Pet Rats

Respiratory infection is the #1 health problem in pet rats, driven by Mycoplasma pulmonis that nearly every rat carries. Learn the signs—including porphyrin "red tears"—the husbandry causes, and when breathing trouble is an emergency.

🦔Hedgehog HealthJul 15, 2026

🐛Parasites

Hedgehog Mites: Signs, Vet-Directed Treatment, and How to Protect Your Hedgehog

Mites are the most common skin problem in pet hedgehogs. Learn how to spot the signs, why over-the-counter mite products are risky, and how a vet safely diagnoses, treats, and helps you prevent them.

🐭Chinchilla HealthJul 15, 2026

🌿Skin & Coat

Chinchilla Fur Slip: Why Your Chinchilla Loses a Patch of Fur (and How to Prevent It)

Fur slip is a chinchilla's reflex to release a clean patch of fur when grabbed or stressed. Learn why it happens, how to tell it from barbering and ringworm, and how to prevent it.

🐟Fish HealthJul 15, 2026

🌿Skin & Coat

Betta Fin Rot: Why It Happens and How to Heal Your Betta's Fins

Fin rot in bettas is almost always a sign of poor water quality, not bad luck. Here's how to spot it early, fix the tank first, and know when medication or an aquatic vet is needed.

🐿️Sugar Glider HealthJul 14, 2026

🦴Mobility

Sugar Glider Hind-Leg Paralysis: The Diet Problem Behind It, and Why Early Cases Often Reverse

In sugar gliders, dragging or paralyzed hind legs are most often a sign of nutritional metabolic bone disease, where a calcium-poor, phosphorus-heavy diet slowly weakens the skeleton. Caught early, it is frequently reversible with veterinary calcium therapy and diet correction.

🦔Hedgehog HealthJul 14, 2026

🦴Mobility

Wobbly Hedgehog Syndrome: Signs, Treatable Look-Alikes, and Gentle Care

Wobbly hedgehog syndrome is a frightening diagnosis — but a wobble is a symptom, not a verdict. Many treatable conditions cause the same unsteadiness. Here's how an exotic vet rules them out, and how to care for a hedgehog living with WHS.

🐟Fish HealthJul 14, 2026

🤮Digestive

Goldfish Swim Bladder Disorder: Why Your Fish Floats, Sinks, or Tips Over

If your goldfish is floating upside down, listing sideways, or stuck on the bottom, swim bladder disorder is usually a sign of a water-quality or feeding problem — not a single disease. Here's how to find the real cause, what to do first, and when to call an aquatic vet.

🐭Chinchilla HealthJul 14, 2026

🤮Digestive

Chinchilla Not Eating? Why It's an Emergency and What to Do

A chinchilla that stops eating is a true emergency; its gut can shut down within a day or two. Here's why it happens, the warning signs, and the fast action that can save your chinchilla's life.