Cat Health: A Complete Guide to Keeping Your Cat Healthy
Cats are remarkably good at hiding when something isn’t right. Understanding your cat’s normal habits—and noticing when they change—is one of the most useful things you can do for their health.
Use this hub to explore practical guides to feline symptoms, preventive care, nutrition, healthy weight, urinary and kidney health, dental care, senior cat health and more.
Cat Health Starts With Knowing What’s Normal
There isn’t one perfect picture of a healthy cat. A rambunctious kitten doesn’t behave like a dignified senior, and a naturally slender cat won’t have the same body shape as a stockier breed.
What matters is learning what is normal for your cat. Pay attention to appetite, water consumption, body weight, energy, grooming, coat condition, eyes, teeth and gums, breathing, mobility, urination, bowel movements, litter-box habits, sleep, social behavior and vocalization.
Changes don’t automatically mean your cat is sick, but persistent or significant changes are worth investigating. Cats can’t tell us they haven’t felt quite right for three days. Often, their behavior tells us instead.
Signs Your Cat May Be Sick
Some cats become noticeably ill. Others simply seem a little different. You may notice your cat sleeping somewhere unusual, leaving food behind, drinking more, hiding, grooming less, hesitating before jumping or visiting the litter box more frequently.
- Reduced or increased appetite
- Unexplained weight loss or gain
- Increased thirst or changes in urination
- Vomiting, diarrhea or constipation
- Unusual tiredness, weakness or hiding
- Changes in personality or grooming
- Bad breath, red gums or drooling
- Eye or nasal discharge
- Persistent coughing or sneezing
- Changes in walking, jumping or mobility
- Unexplained lumps, itching or hair loss
Supporting guides: Cat Vomiting · Cat Diarrhea · Cat Constipation · Cat Not Eating · Cat Drinking More Water · Cat Weight Loss · Cat Lethargy
When Is a Cat Health Problem an Emergency?
Some problems shouldn’t wait for a routine appointment. Seek urgent veterinary help for serious difficulty breathing, collapse, severe trauma, seizures, suspected poisoning or another sudden and severe change in condition.
When you are unsure whether a situation can safely wait, calling your veterinary clinic or an emergency veterinary hospital is generally the safest course.
Preventive Cat Health Care
Some of the most important veterinary care happens when your cat isn’t sick. Preventive care establishes what is normal, tracks changes over time and can identify concerns before they become obvious at home.
Routine Exams
Physical examinations, weight and body-condition monitoring and age-appropriate screening.
Dental Care
Regular mouth and dental assessment to identify painful problems that cats may hide.
Prevention
Individualized vaccination and parasite-prevention plans based on lifestyle and risk.
Nutrition
Feeding guidance appropriate for age, body condition, health and lifestyle.
Healthy Weight in Cats
Weight deserves a prominent place in feline health. Healthy body condition contributes to comfort, mobility and overall well-being, but there is no single ideal weight for every cat.
Breed, frame, sex, age, muscle mass and body composition all matter. That is why veterinarians assess body condition as well as the number on the scale. Unexplained weight loss matters too, particularly in older cats, even when appetite appears normal.
Healthy Cat Weight Guide · Cat Healthy Weight Chart · Helping an Overweight Cat Lose Weight Safely · Why Is My Cat Losing Weight?
Cat Nutrition & Feeding
Food is one of the foundations of feline health—and one of the most confusing areas for owners. The basic objective is straightforward: provide a complete and balanced diet appropriate for your cat’s life stage, health and lifestyle, in portions that support a healthy body condition.
Cats are obligate carnivores with nutritional requirements that differ from those of humans and dogs. When a cat has a diagnosed medical condition, diet may also become part of treatment.
Urinary Health in Cats
Feline urinary health deserves special attention because urinary problems are common and some can become urgent. Warning signs include frequent litter-box trips, straining, passing tiny amounts of urine, urinating outside the box, crying during urination, blood in the urine or excessive licking around the urinary area.
Urinary signs have several possible causes, so treatment depends on obtaining the correct diagnosis.
Cat Urinary Health Diet Guide · Urinary Tract Problems in Cats · Male Cat Urinary Blockage · Why Is My Cat Peeing Outside the Litter Box?
Kidney Health & Kidney Disease in Cats
The kidneys perform essential jobs including filtering waste products from the blood and helping regulate fluid and electrolyte balance. Kidney disease becomes increasingly important as cats age, although kidney problems are not limited to seniors.
Possible signs include increased drinking and urination, weight loss, reduced appetite, vomiting or nausea, reduced energy and poor coat condition. These signs can occur with many conditions, so veterinary examination and testing are needed.
Feline Kidney Disease
Understand CKD symptoms, diagnosis, stages, nutrition, hydration, treatment and practical home care.
Cat Dental Health: Teeth, Gums & Mouth
Dental disease can cause pain and infection, yet cats do not necessarily stop eating when their mouths hurt. Warning signs include bad breath, red or swollen gums, bleeding, drooling, difficulty eating, changed chewing, pawing at the mouth, visible tartar or damaged teeth.
What Do Healthy Cat Gums Look Like? · Cat Teeth & Dental Health · Cat Oral Health · Why Does My Cat Have Bad Breath? · How to Brush a Cat’s Teeth
Digestive Health
Persistent or repeated gastrointestinal symptoms deserve attention. Watch for vomiting, diarrhea, constipation, reduced appetite, weight loss, abdominal discomfort and changes in stool or litter-box habits.
Repeated vomiting should not simply be dismissed as something cats do. Digestive signs can arise from many different problems, so recurring symptoms deserve veterinary assessment.
Cat Vomiting · Diarrhea in Cats · Constipation in Cats · Hairballs: What’s Normal?
Skin, Coat, Eye & Ear Health
A cat’s skin, coat, eyes and ears can provide useful clues about overall health. Watch for excessive scratching, bald areas, redness, scabs, dandruff, lumps, matted fur, excessive licking, ear debris, head shaking, squinting, cloudiness, swelling or persistent discharge.
A previously meticulous cat that develops an unkempt coat may be experiencing pain, reduced mobility, obesity, skin disease or another health problem. Painful or injured eyes deserve prompt veterinary attention.
Cat Hair Loss · Fleas on Cats · Ear Mites · Cat Skin Allergies · Ringworm
Heart, Respiratory & Mobility Health
Changes in breathing deserve particular attention. Coughing, wheezing, rapid or labored breathing, nasal discharge and reduced exercise tolerance can signal respiratory or other health problems. Breathing difficulty is an emergency.
Cats also do not have to limp dramatically to experience joint pain. A cat may stop jumping to a favorite perch, use stairs more slowly, sleep more, groom less effectively or struggle with a high-sided litter box.
Heart Disease in Cats · Cat Asthma · Arthritis in Cats · Cat Joint Health · Signs of Pain in Cats
Parasites & Infectious Diseases
Even indoor cats can face infectious-disease and parasite risks. Depending on lifestyle and geographic area, preventive care may address fleas, ticks, intestinal parasites, heartworm, feline leukemia virus (FeLV), feline immunodeficiency virus (FIV), respiratory infections, rabies and other vaccine-preventable diseases.
Your veterinarian can recommend a vaccination and parasite-prevention plan suited to your individual cat.
Spaying, Neutering & Recovery
Although many cats recover quickly from spay and neuter surgery, postoperative care still matters. Follow the veterinary clinic’s instructions for activity, incision monitoring, feeding, medication, preventing licking and follow-up care.
Cat Care After Spay Surgery
Recovery, incision care, activity, feeding and what owners should watch for after surgery.
Kitten & Senior Cat Health
Kitten Health
Kittens need age-appropriate veterinary care, vaccination, parasite control, nutrition, growth monitoring, socialization and spay/neuter planning.
Senior Cat Health
Older cats may face kidney, thyroid, joint, dental, heart, blood-pressure and other age-related concerns. Subtle changes deserve attention.
Mental & Emotional Health Matters, Too
Health is not purely physical. Cats need an environment where they can feel safe and express normal feline behavior through play, climbing, scratching, hiding, resting, exploring and positive social interaction.
In multi-cat homes, adequate resources are especially important. Cats should not have to compete constantly for food, water, litter boxes, sleeping places or safe territory.
Visit the Cat Behavior Hub Having trouble between cats? Read our Cat-on-Cat Aggression Guide →
A Simple At-Home Cat Health Check
Once a month, take a few minutes during a relaxed cuddle or grooming session to notice your cat’s body condition, coat, skin, eyes, ears, mouth, claws and movement. Then think about appetite, drinking, litter-box habits, play, grooming and social behavior.
Weight or body-condition changes?
Clean coat? New lumps, sores or bald areas?
Clear and comfortable? Any odor or unusual debris?
Redness, swelling, bad breath or damaged teeth?
Walking, stretching and jumping normally?
Eating, drinking and using the litter box normally?
Keep a Cat Health Record
Keep track of veterinary visits, vaccinations, medications, laboratory results, dental procedures, previous illnesses, allergies or medication reactions, weight, diet and microchip information.
Consider weighing your cat periodically and recording the result. Gradual weight loss can be remarkably difficult to see beneath a fluffy coat. Occasional photographs from above and from the side can also help you notice body-condition changes over time.
Common Cat Health Questions
How can I tell whether my cat is healthy?
Look at the whole cat rather than one characteristic. A healthy cat generally has an appropriate body condition, normal appetite and thirst, comfortable movement, regular litter-box habits, normal grooming and behavior appropriate for that individual cat. Persistent changes from your cat's normal routine deserve attention.
How often should a cat have a health check?
There is no single schedule that is appropriate for every cat. Your veterinarian can recommend examination frequency based on your cat's age, health, lifestyle and individual risk factors. Kittens, senior cats and cats with chronic medical conditions may need more frequent visits.
What are healthy cat gums supposed to look like?
Healthy feline gums are generally pink and moist, although normal pigmentation varies. Marked redness, swelling, bleeding, sores, unusual paleness or other significant changes warrant veterinary attention.
How do I know if my cat is a healthy weight?
The number on the scale is only part of the answer. Body condition is also important. You should generally be able to feel the ribs beneath a light tissue covering, and many healthy cats have a visible waist when viewed from above. Your veterinarian can show you how to assess body condition.
Why is my cat suddenly drinking more water?
Increased thirst can have many causes and cannot be diagnosed from a symptom alone. If the change is significant or persistent, arrange a veterinary examination.
Do indoor cats still need veterinary care?
Yes. Indoor living reduces some risks but does not prevent dental disease, kidney disease, endocrine disorders, arthritis, obesity, cancer and many other health problems. Indoor cats still benefit from individualized preventive veterinary care.
Should I give my cat vitamins or health supplements?
Do not assume a supplement is beneficial simply because it is marketed for cats. Cats eating a complete and balanced diet may not need routine supplementation, and some products can be inappropriate. Discuss supplements with your veterinarian, especially if your cat has a medical condition or takes medication.
Is vomiting normal for cats?
An isolated episode can occur, but frequent or persistent vomiting should not simply be considered normal feline behavior. Contact your veterinarian when vomiting is recurrent, severe or accompanied by other symptoms.
What should I do if my cat stops eating?
Loss of appetite can accompany many illnesses. Because prolonged inadequate food intake can become particularly problematic for cats, contact your veterinarian when your cat stops eating or has a substantial unexplained reduction in appetite.
Why is my cat hiding?
Hiding can be normal feline behavior, but a sudden change matters. A sociable cat that abruptly begins hiding may be stressed, frightened, painful or ill. Look for other changes and contact your veterinarian if you are concerned.
Explore the Cats Central Health Library
Cat health is far too large a subject for one page. Use this hub as your starting point whenever you notice something new, want to understand a diagnosis or simply want to learn how to keep your cat healthier.
Helping Your Cat Live a Healthy Life
Good cat care isn’t about spotting every possible disease before it happens. It’s about paying attention.
Know what your cat normally eats and drinks. Notice what appears in the litter box. Keep an eye on weight. Look at the teeth and gums. Watch how your cat moves. Notice whether they are still jumping onto the windowsill and meeting you for breakfast.
Regular veterinary care, appropriate nutrition, preventive health care, a safe and stimulating environment—and an observant person who knows them well—can give cats their best opportunity for a long, comfortable and happy life.
That’s what Cats Central is here for: helping you understand your cat a little better, so you can take the very best care of the little creature who has quietly taken over your home.