Cat Health Checklist | Daily Observation Points and Signs of Illness | ブリちょく
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Cat Health Checklist | Daily Observation Points and Signs of Illness
Explains daily health check methods for early detection of changes in your beloved cat. Introduces in detail how to check the condition of the eyes, ears, mouth, and coat, how to monitor changes in urine output, and warning signs such as decreased appetite, vomiting, and sneezing that warrant a veterinary visit.
Key Takeaways
Explains daily health check methods for early detection of changes in your beloved cat. Introduces in detail how to check the condition of the eyes, ears, mouth, and coat, how to monitor changes in urine output, and warning signs such as decreased appetite, vomiting, and sneezing that warrant a veterinary visit.
Cats are animals that instinctively hide pain and illness. In the wild, showing weakness increases the risk of becoming prey to predators, so cats have an ingrained habit of appearing fine even when unwell. As a result, by the time an owner notices something unusual, the disease is often already quite advanced. This is why daily bonding and observation are your cat's greatest defense against serious illness.
Daily Facial Checks
Eye Checks
The eyes reveal health status very clearly. A small amount of white to pale yellow discharge upon waking is normal, but if there is excessive discharge, dark yellow or green coloration, or sticky discharge, it may indicate conjunctivitis or viral infection.
Are the eyes red or watery?
Is the cat squinting or appearing sensitive to light?
Is the third eyelid (the white membrane visible at the inner corner of the eye) visible?
If the whites of the eyes appear yellowish, it may be jaundice, suggesting liver or gallbladder disease
Ear Checks
In a healthy cat, the inner ear is pink and clean. Large amounts of black granular earwax may indicate ear mites (ear mange), which if left untreated can lead to severe itching and external ear infections.
Has the amount or color of earwax changed?
Are there unusual odors or redness?
Has the cat been shaking its head more frequently or scratching at its ears with its hind legs?
If the inner ear is covered with brown, thick debris, external ear infection is possible
Nose and Mouth Checks
Small amounts of clear nasal discharge are normal, but yellow or green discharge suggests upper respiratory tract infection (cat flu) caused by bacteria or viruses. Frequent sneezing occurring multiple times daily is also a cause for concern.
Bad breath can reflect the condition of internal organs. Sweetly fruity breath odor may indicate diabetes, while ammonia or urine-like odor may be an early sign of kidney failure. Always check gum color. Healthy cat gums are salmon pink. If they appear whitish or pale, anemia or poor circulation may be suspected.
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Appetite is a barometer of your cat's health. Check daily if your cat is eating roughly the same amount and whether food is being left uneaten. Sudden increased water consumption (excessive drinking and urination) is a classic sign of diabetes, chronic kidney disease, or hyperthyroidism. Special attention is needed for middle-aged and senior cats (7 years and older).
Litter Box Monitoring
Make litter box checks a daily habit. Your cat's litter box use is an important window into your pet's internal SOS signals.
Urination: If your cat strains in the litter box for long periods or enters multiple times but passes little to no urine, this may indicate urinary disease (cystitis, urinary stones, or urethral blockage). Male cat urethral blockage is a life-threatening emergency within hours
Bloody urine: If the litter appears pink or you notice blood in the urine, seek veterinary care immediately
Defecation: Check stool consistency, color, and frequency daily. Black stool suggests digestive tract bleeding, while red blood in stool indicates trouble in the colon or rectum. No bowel movements for 3 or more days also requires treatment as constipation
Vomiting: Coughing up hairballs about once weekly is normal, but more frequent vomiting, vomiting shortly after eating, or vomiting with foam or blood is abnormal
Fur and Body Checks
When cats become unwell, grooming quality is the first to decline. Changes such as matted or dull-looking fur, loss of sheen, or increased hair shedding are signs of illness. Conversely, excessive grooming focused on specific areas may indicate allergies, skin disease, or stress.
During daily bonding, run your hands over your cat's entire body to check for lumps, wounds, scabs, or swelling. Areas around the mammary glands (which can occur in male cats too) and the neck are often overlooked.
Weekly Weight and Nail Checks
Weight Measurement
A cat's weight change is an extremely important health indicator. If your cat's weight changes by 10% or more over two weeks, this should be considered abnormal. For example, a 4 kg cat showing a change of 400g or more warrants attention. You can measure using a human scale by weighing yourself holding your cat, then subtracting your own weight.
Nail Inspection
Indoor cats don't wear down their nails naturally, so regular nail trimming is necessary. Overgrown nails can cause "ingrown nails" where they dig into the paw pads. If you hear scratching sounds on the floor or notice your cat walking awkwardly, check nail length.
The following signs should not be "wait and see" situations—seek care the same day.
Multiple trips to the litter box with little to no urine output (especially male cats: urethral blockage becomes life-threatening within hours)
Severe vomiting or diarrhea continuing, or blood in vomit or stool
Lethargy and immobility, or unresponsive to your voice
No appetite for 2 or more days
Mouth hanging open while breathing, rapid breathing, or breathing from the abdomen
Seizures, loss of consciousness, or sudden collapse
Gums appearing white, pale, or purple
Your intuition as an owner that something is "a bit off" is usually correct. Even if you think "it's probably nothing," don't hesitate to consult your veterinarian about anything that concerns you.
Regular Health Checkup Schedule
Age
Checkup Frequency
Recommended Tests
Up to 1 year
During vaccination
Physical exam, fecal exam, viral testing
1–6 years
Once yearly
Physical exam, blood work, urinalysis
7–10 years
1–2 times yearly
Above + kidney values, thyroid values
11 years and up
2–4 times yearly
Above + blood pressure, ultrasound
Especially after age 7, early detection of chronic kidney disease and hyperthyroidism is crucial. SDMA testing can detect kidney disease at an earlier stage than traditional BUN/creatinine measures, so we recommend pursuing it actively.
Basic Home Health Check Methods
In addition to regular veterinary checkups, develop the habit of regularly monitoring your cat's health at home.
Weight Measurement Tips
The easiest method is to hold your cat and step on a human scale, then subtract your own weight. Measure at least monthly, and consult your veterinarian if there is a change of 500g or more.
Oral Cavity Check
Gently pull back the lips to examine the gums. Healthy gums are pink and moist. Gums that are white, yellow, or red and swollen may indicate periodontal disease or anemia. Strong-smelling breath is also a sign of dental disease.
Summary: Daily Observation Protects Your Cat's Life
The foundation of cat health care is the accumulation of daily bonding and observation. No special tools are needed. Petting while touching the body, observing elimination while cleaning the litter box, checking appetite during feeding—early detection opportunities lie hidden in these everyday routines.
Knowing what healthy looks like is the best shortcut to noticing abnormalities. Combined with regular health screenings (once yearly for adult cats, twice yearly for senior cats 7 and older), you greatly increase the chances of catching serious illness early. At ブリちょく's cat category, you can welcome cats with clear health status and living environment directly from breeders. To make your time with your precious cat long and enriching, start daily health checks today.