The Library
Feline Coronavirus (FCoV)
Feline Coronavirus (FCoV) is a common virus that infects a cat's intestinal tract.
Feline Panleukopenia (Feline Distemper)
Feline Panleukopenia (FPV), often called "feline distemper," is a highly contagious and potentially fatal viral disease.
Urinary Blockage in Cats (Urethral Obstruction)
A urinary blockage — medically called urethral obstruction — is one of the most urgent true emergencies in cat health.
Giardia in Cats
Giardia is a microscopic parasite (protozoan) that infects the small intestine.
Feline Calicivirus (FCV)
Feline Calicivirus (FCV) is one of the most common causes of upper respiratory infection and oral disease in cats.
Ear Mites in Cats (Otodectes cynotis)
Ear mites are tiny, highly contagious parasites that live in a cat's ear canal, feeding on skin oils, wax, and debris.
Necrotizing Fasciitis ("Flesh Eating Bacteria") in Cats
Necrotizing fasciitis is a rare but extremely serious bacterial infection that destroys skin and the underlying tissue at an alarming speed.
Urinary Tract Infection (UTI) in Cats
A UTI is a bacterial infection of the urinary tract — most often the bladder.
Bacterial Infections Causing Colds & Flu-Like Symptoms in Cats
When people say their cat has a "cold" or "flu," they're usually describing Feline Upper Respiratory Infection (URI) — and while viruses (herpesvirus, calicivirus) cause about 90% of these cases, **bacteria are frequently involved too**, either as the primary cause or as a secondary infection riding along with a virus.
Chronic Kidney Disease (CKD) in Cats
Chronic Kidney Disease is one of the most common conditions in older cats, and it's exactly what your original skill was built around — a gradual, progressive decline in kidney function over months to years.
Tracheal Collapse in Cats
Tracheal collapse happens when the cartilage rings supporting the windpipe (trachea) weaken and flatten, narrowing the airway.
Hypertrophic Cardiomyopathy (HCM) in Cats
Hypertrophic Cardiomyopathy is the most common heart disease in cats, affecting up to **15% of the general cat population**.
Gingivitis in Cats
Gingivitis is inflammation of the gums, and it's extremely common in cats.
Pancreatitis in Cats
Pancreatitis is inflammation of the pancreas, the organ responsible for digestive enzymes and blood sugar regulation.
Anemia in Cats
Anemia isn't a disease itself — it's a symptom of an underlying problem, meaning too few red blood cells to carry adequate oxygen through the body.
Lupus in Cats (Nasal Cutaneous Lupus)
"Lupus" in cats is quite different from what many people picture from human lupus.
Ear Infections in Cats (Otitis)
Ear infections (otitis) in cats involve inflammation and often infection of the ear canal.
Pneumonia in Cats (Mucus/Fluid in the Lungs)
Pneumonia is inflammation of the lungs, often with fluid or mucus buildup that interferes with breathing.
Pyometra in Cats
Pyometra is a serious uterine infection that affects unspayed female cats.
Immunodeficiency in Cats (FIV — Feline Immunodeficiency Virus)
When people say a cat has "immunodeficiency," they're almost always referring to **FIV (Feline Immunodeficiency Virus)** — sometimes called "feline AIDS" because it's related to HIV in humans, though it behaves quite differently and has a much better long-term outlook than that comparison suggests.
Diaphragmatic Hernia in Cats
A diaphragmatic hernia is a tear or opening in the diaphragm — the sheet of muscle separating the chest cavity from the abdomen.
Hyperthyroidism in Cats
Hyperthyroidism is the most common hormonal disorder in cats — an overactive thyroid gland produces too much thyroid hormone, speeding up the body's metabolism.
Diabetes Mellitus in Cats
Diabetes in cats happens when the body can't properly regulate blood sugar — either from insufficient insulin production or the body's cells not responding to insulin well.
Feline Leukemia Virus (FeLV) in Cats
FeLV is a retrovirus that weakens the immune system and can cause cancers and blood disorders.
Ringworm (Dermatophytosis) in Cats
Despite the name, ringworm isn't a worm at all — it's a fungal infection of the skin, hair, and nails.
Feline Herpesvirus (FHV-1 / Feline Viral Rhinotracheitis)
Feline Herpesvirus (FHV-1), also called Feline Viral Rhinotracheitis (FVR), is one of the two major viruses behind "cat colds" — the other being calicivirus, covered elsewhere in this library.
Intestinal Worms in Cats (Roundworms, Hookworms, Tapeworms)
Intestinal worms are probably the single most common health issue in rescue and shelter intake cats, especially kittens.
Feline Asthma
Feline asthma is a chronic allergic respiratory condition where the small airways in the lungs become inflamed, leading to coughing, wheezing, and potentially serious breathing difficulty.
Inflammatory Bowel Disease (IBD) in Cats
Inflammatory Bowel Disease is chronic inflammation of the stomach and/or intestinal lining, leading to digestive symptoms that come and go over time.
Hepatic Lipidosis (Fatty Liver Disease) in Cats
Hepatic lipidosis is the most common, potentially lethal liver disease in cats — and it's referenced as a risk throughout several other articles in this library, because it can develop dangerously fast whenever a cat stops eating.
Constipation & Megacolon in Cats
Constipation is common in cats and usually manageable, but when it becomes chronic and severe, it can progress to megacolon — a serious condition where the colon loses its ability to contract normally and becomes permanently enlarged.
Toxoplasmosis in Cats
Toxoplasmosis is a common parasitic infection that gets an outsized amount of fear and misinformation attached to it — especially around pregnancy.
Common Poisoning & Toxicity in Cats
Cats are uniquely vulnerable to poisoning for a few specific reasons: they lack certain liver enzymes humans and dogs use to safely process many substances, they're fastidious groomers (so anything on their fur or paws often gets ingested), and their small body size means even a "small" exposure can be a large relative dose.
Tooth Resorption (FORL) in Cats
Feline Tooth Resorption — historically called Feline Odontoclastic Resorptive Lesions (FORLs), and also known as "neck lesions" or "cat cavities" — is the most common dental problem in cats.
Chronic Rhinitis / Rhinosinusitis in Cats ("Chronic Snufflers")
This is the condition behind a cat who seems to have an endless, on-and-off "cold" — one that never fully clears with antibiotics and keeps coming back.