Cats are masters at concealing discomfort—a survival instinct that often delays crucial diagnosis. Recognizing the early warning signs of common health issues can be lifesaving. This guide details frequent feline ailments, their symptoms, and clear guidelines for when to seek professional care.
Upper Respiratory Infections (URI)
What Is It?
Often called the "common cold" of cats, URIs are typically caused by viruses like feline herpesvirus or calicivirus.
Symptoms
- Sneezing and nasal discharge
- Watery, red, or goopy eyes
- Loss of appetite
- Lethargy and reduced activity
- Mouth ulcers
When to See a Vet
- Emergency: Difficulty breathing or open-mouth breathing.
- Within 24 Hours: Refusal to eat or drink for more than a day.
- Monitor at Home: Mild sneezing in a healthy, vaccinated adult.
Urinary Tract Issues
Urinary Tract Infections (UTI)
Bacterial infections are more common in older cats, particularly females.
Symptoms
- Frequent trips to the litter box with little output
- Straining or crying while urinating
- Blood in the urine (hematuria)
- Urinating outside the litter box
Feline Lower Urinary Tract Disease (FLUTD)
An umbrella term for urinary crystals, stones, and idiopathic cystitis.
Symptoms
- Straining to urinate
- Producing only small amounts of urine
- Vocalizing in the litter box
- Increased agitation or hiding
Urinary Blockage (A True Emergency)
A life-threatening obstruction, most common in male cats due to their narrow urethra. GO IMMEDIATELY to an ER if your cat cannot produce urine.
Dental Disease
Common Problems
- Gingivitis: Red, inflamed, and bleeding gums.
- Periodontal Disease: Infection affecting tissue and bone, potentially leading to organ damage.
- Tooth Resorption: Painful breakdown of the tooth structure.
Symptoms
- Persistent bad breath
- Drooling or dropping food
- Difficulty chewing or refusing hard food
- Pawing at the mouth
Chronic Kidney Disease (CKD)
A progressive condition prevalent in senior cats, affecting up to 50% of felines over age 12.
Key Symptoms
- Increased thirst and water consumption
- Increased urine volume
- Gradual weight loss
- Intermittent vomiting
- Ammonia-like breath odor
Hyperthyroidism
An overproduction of thyroid hormone, common in older cats.
Symptoms
- Weight loss despite a ravenous appetite
- Hyperactivity or increased vocalization
- Increased thirst
- Unkempt or greasy coat
Diabetes Mellitus
A metabolic disorder where the body cannot regulate blood sugar, often linked to feline obesity.
Symptoms
- Excessive thirst and urination
- Weight loss with a good appetite
- Plantigrade stance (walking on hocks)
Emergency Situations: When to Go to the ER Immediately
- Respiratory Distress: Choking or blue gums.
- Suspected Urinary Blockage: Straining with no urine production.
- Uncontrolled Bleeding.
- Sudden Paralysis: Specifically the inability to use hind legs.
- Seizures.
- Toxic Ingestion: Lilies, antifreeze, or human meds.
Preventive Care: The Foundation of Feline Health
Regular Veterinary Visits
- Adults: Annual wellness exams.
- Seniors (7+): Biannual exams with blood work.
Core Vaccinations
- FVRCP: Protects against panleukopenia and respiratory viruses.
- Rabies: Legally required and vital for safety.
Proactive care is the cornerstone of longevity. Because cats are stoic, subtle changes in routine are often the only signs of illness. Early intervention not only saves lives but is often more manageable than treating advanced disease. When in doubt, contact your veterinarian; it is always better to err on the side of caution.