Pet Health Library

Guides to pet symptoms and conditions, cited to the veterinary literature — what's normal, what's not, and when to see a vet.

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Showing 1–24 of 961 articles

🐕Dog HealthAug 13, 2026

🐣New Pet & Care

Puppy Socialization Window: A Safe Critical-Period Checklist

Puppy socialization is not a race to meet as many dogs as possible. Use calm, positive, carefully controlled experiences, protect your puppy from infection risk, and get help early if fear is growing.

🦔Hedgehog HealthAug 13, 2026

🚽Urinary

Blood in a Hedgehog's Urine: Urinary or Uterine Bleeding?

Blood where your hedgehog urinates needs prompt veterinary care, but in an intact female the source may be the uterus rather than the bladder. Learn what to document, what not to try at home, and which signs make it an emergency.

🐟Fish HealthAug 13, 2026

🌿Skin & Coat

Goldfish Fin Rot: Signs, Causes, and What to Do First

Ragged goldfish fins can come from injury, poor water conditions, or bacterial disease. Learn what progression looks like, what to test today, and when fin damage needs an aquatic veterinarian.

🐭Gerbil HealthAug 13, 2026

👁️Eyes & Ears

Gerbil Ear Cholesteatoma: Head Tilt, Scratching, and Ear Pain

Head tilt, scratching, circling, discharge, or balance loss in a gerbil needs an exotic-veterinary examination. A cholesteatoma is one possible cause in Mongolian gerbils, although the available evidence comes mainly from laboratory ear-model and pathology studies rather than pet clinical series.

🦜Bird HealthAug 13, 2026

🐛Parasites

Cockatiel Giardia: Signs, Testing, and What to Do

Giardia can cause abnormal droppings in cockatiels, but healthy-looking adults may also carry it. Learn which signs matter, why one fecal test may miss it, and when your bird needs prompt avian-veterinary care.

🐿️Sugar Glider HealthAug 12, 2026

🚽Urinary

Sugar Glider Straining to Urinate: Signs of an Emergency

Repeated urination posture, straining, crying, or passing only tiny drops is abnormal in a sugar glider. Learn why the cause is not always a UTI and which signs need urgent exotic-veterinary care.

🐀Rat HealthAug 12, 2026

🦴Mobility

Rat Hind-Leg Weakness: Sudden Injury or Age-Related Decline?

Back-leg weakness in a rat is a sign, not a diagnosis. Sudden, one-sided, painful weakness needs urgent assessment, while a gradual decline in both hind legs may fit an age-related nerve disorder only after other causes are considered.

🐈Cat HealthAug 12, 2026

🐣New Pet & Care

Newly Adopted Cat: How Long Until They Adjust?

A newly adopted cat may show progress over days but need weeks or longer to feel fully secure. Skip rigid adjustment timelines and watch eating, litter use, exploration, play, and comfort around people instead.

🐟Fish HealthAug 12, 2026

🚨Emergency

Goldfish Ammonia Poisoning: Signs, Test Results, and First Steps

Ammonia poisoning can injure a goldfish before the water looks or smells unusual. Learn which signs matter, how pH and temperature change the meaning of an ammonia result, and what to do first.

🐭Chinchilla HealthAug 12, 2026

🚽Urinary

Chinchilla Bladder Stones: Blood in Urine, Straining, and What to Do

Blood in the urine, repeated squatting, or painful urination can signal a bladder or urethral stone in a chinchilla. These signs need prompt veterinary assessment because a stone can obstruct urine flow, especially when it enters the urethra.

🐕Dog HealthAug 11, 2026

🐣New Pet & Care

The 3-3-3 Rule for a New Rescue Dog: What the Research Actually Measured

The 3-3-3 rule is a rescue-community rubric, not a research finding. Here is what published studies actually measured in newly adopted dogs — cortisol, night-time rest, body weight and behaviour — and why those timepoints do not line up with three days, three weeks and three months.

🐭Gerbil HealthAug 11, 2026

🍽️Eating & Drinking

Gerbil Not Eating? How Urgent It Is and What to Check First

A gerbil that stops eating has very little reserve, so this is a same-day question. But gerbils hoard food, so the bowl misleads in both directions — here is how to tell real inappetence from caching, and the causes worth ruling out tonight.

🐭Degu HealthAug 11, 2026

🤮Digestive

Degu Diarrhea: What Soft or Liquid Droppings Mean and What to Do

Loose droppings in a degu are usually a fermentation problem from diet, or a sign of illness elsewhere. The danger is dehydration and a gut that stops moving, not the stool itself. Here is how to tell true diarrhea from normal caecotrophs, what to change today, and which signs mean call a vet now.

🐭Chinchilla HealthAug 11, 2026

🌿Skin & Coat

Chinchilla Ringworm: Bald Patches, Treatment, and the Zoonosis Risk

A circular bald patch on a chinchilla's nose, ears or feet is often ringworm — a fungal infection, usually Trichophyton mentagrophytes, that spreads to people. Chinchillas can also carry it while looking completely healthy, so hand-washing and a vet-run culture matter more than how the patch looks.

🐟Fish HealthAug 11, 2026

🐛Parasites

Betta Ich (White Spot): Why the Spots Vanishing Doesn't Mean It's Over

Salt-grain white spots on a betta usually mean ich (Ichthyophthirius multifiliis). Only the free-swimming stage can be killed by medication, so treatment runs on a schedule — daily at 75°F–79°F, a minimum of 3 to 5 treatments — not until the spots vanish. Here is how to tell ich from velvet and columnaris, and what to do tonight.

🐕Dog HealthAug 8, 2026

🐣New Pet & Care

Puppy Feeding Schedule by Age and Breed Size

Puppies are generally fed three meals a day from weaning to 6 months, then twice daily from 6 to 12 months, with small breeds often needing more. How much goes in the bowl depends on the food, so start from the bag's feeding guide and steer by body condition.

🐁Mouse HealthAug 8, 2026

🤮Digestive

Mouse Diarrhea: Why Soft Droppings Are an Emergency

A pet mouse weighs only about 20 to 40 grams, so fluid lost to diarrhea becomes dangerous within hours, not days. Here is how to tell true diarrhea from a wet rear caused by urine, what usually causes it, and what to do before you reach an exotics vet.

🐭Gerbil HealthAug 8, 2026

🌿Skin & Coat

Gerbil Mites: Why Itchy, Scabby Skin Usually Isn't Mites

Scratching, scabs and thinning fur in a gerbil are far more often nasal dermatitis, barbering or a fight wound than mites — and mites can only be confirmed with a microscope. Here is how the diagnosis is actually made and what to fix at home while you wait.

🐕Dog HealthAug 8, 2026

🤮Digestive

Dog Car Sickness: Motion Sickness or Travel Anxiety?

Drooling, whining, and vomiting in the car can come from inner-ear motion sickness, from a learned fear of the vehicle, or from both at once, and the two need different fixes. Here is how to tell them apart, what to change on the next drive, and what a vet can prescribe.

🐟Fish HealthAug 8, 2026

🚨Emergency

Betta Dropsy: What Pineconing Scales Really Mean

Dropsy is not a disease you can cure with a bottle from the fish shop. It is the outward sign of fluid collecting inside a betta, often from a failing organ or a systemic infection. Here is what is really happening, what to test today, and what your options are.

🐈Cat HealthAug 7, 2026

🐣New Pet & Care

What to Buy for a New Kitten: The Real Essentials

A new kitten needs about eight things on day one, and the pet store will try to sell you fifty. Here is the guideline-backed split between what actually matters — two litter boxes, a growth-formula food, a multi-level rope scratching post, a carrier, a microchip — and what can wait, plus how the list shifts with your kitten's age and whether you already have a cat.

🐿️Sugar Glider HealthAug 7, 2026

👁️Eyes & Ears

Sugar Glider Cataracts: What a Cloudy Eye Really Means

A cloudy eye in a sugar glider may be a cataract — a painless lens opacity — but cataracts don't hurt, so a painful or weepy cloudy eye points to the surface of the eye instead, and that is urgent. Here's how to tell them apart, and what the literature really says about the mother's diet.

🐀Rat HealthAug 7, 2026

👁️Eyes & Ears

Rat Head Tilt: What It Means and What to Do

A head tilt in a pet rat points first to middle- or inner-ear infection — the branch that responds to treatment, though a case series in companion rats found intracranial spread was not rare. A pituitary tumour is the other differential, and it can cause balance signs too. The two are separated at the vet with an ear exam and imaging, not by watching your rat at home.

🐸Amphibian HealthAug 7, 2026

🌿Skin & Coat

Frog Fungus: White Fuzz, Chytrid, and What They Mean

White fuzz on a frog may be a water mould, while chytrid — the serious one — often shows no fuzz at all, just changed shedding, dull skin and a frog that stops eating. Here is how the look-alikes differ, and why only a swab or a sample can tell them apart.