5 Signs Your Cat Needs a Vet Visit (That You Might Miss)

The Problem With Cats and Pain

Cats are evolutionary experts at masking illness. In the wild, showing weakness makes an animal a target for predators, so cats learned to hide pain and discomfort remarkably well. This survival instinct is great in nature but challenging for pet parents trying to keep their indoor cat healthy.

By the time a cat shows obvious signs of illness, like refusing to eat entirely or becoming visibly lethargic, the underlying issue may have been developing for weeks or even months. The key is learning to spot the subtle early signals that something has shifted.

1. Changes in Eating or Drinking Habits

A cat that suddenly eats less, eats more, or changes how it eats is telling you something. Watch for:

• Eating less than usual or walking away from food they normally enjoy
• Difficulty chewing or dropping food from their mouth, which can signal dental pain
• Dramatically increased thirst, which can be an early indicator of kidney disease, diabetes, or hyperthyroidism
• Eating significantly more without gaining weight, another potential sign of hyperthyroidism

Small fluctuations in appetite are normal, especially with weather changes or after a stressful event. But a consistent change lasting more than two or three days warrants a closer look.

2. Litter Box Changes

The litter box is one of the most reliable windows into your cat's health. Changes here are often the first sign of a problem:

• Urinating more frequently or in larger amounts
• Straining to urinate or crying in the litter box (this is urgent, especially in male cats, as it can indicate a life-threatening urinary blockage)
• Diarrhea or constipation lasting more than a day
• Blood in urine or stool
• Urinating outside the litter box, which is rarely a behavior problem and much more often a sign of pain, infection, or stress

3. Hiding More Than Usual

Cats enjoy their quiet spots, but there's a difference between a cat that likes to nap under the bed and one that has suddenly started avoiding the family entirely.

Increased hiding is one of the most common early signs of illness or pain in cats. When a cat doesn't feel well, its instinct is to find a safe, enclosed space and stay there. Look out for:

• Spending significantly more time in closets, under furniture, or in unusual hiding spots
• Avoiding interaction with family members they normally seek out
• Reluctance to come out for meals or favorite activities
• Sleeping in a hunched, tucked position rather than their usual relaxed sprawl

This sign is easy to dismiss, especially in naturally independent cats. But if the pattern changes from their baseline behavior, it's worth paying attention.

4. Grooming Changes

Cats are meticulous groomers, so changes in their coat or grooming habits stand out once you know what to look for:

• Over-grooming or excessive licking of a specific area, which can indicate pain, allergies, or skin conditions, sometimes resulting in bald patches
• Matted or unkempt fur, especially in a cat that normally keeps themselves pristine, which can signal that they're too tired, stiff, or sore to groom
• Dandruff or a dull, oily coat, which may point to nutritional deficiencies or systemic illness

Older cats commonly develop arthritis that makes it difficult to reach certain areas for grooming. If your senior cat's coat starts looking rough along their back or hind legs, a vet check for joint pain is a good idea.

5. Gradual Weight Loss

This is perhaps the trickiest sign to catch because it happens slowly. A cat that loses half a pound over two months doesn't look dramatically different day to day, but that can represent a 5 to 10 percent body weight change, which is clinically significant.

Common causes of gradual weight loss in cats include:

• Hyperthyroidism, one of the most common conditions in older cats
• Kidney disease, which affects roughly 1 in 3 cats over age 15
• Diabetes
• Dental disease making eating painful
• Cancer

The challenge is that you see your cat every day, so incremental changes are nearly invisible. This is one area where actual data makes a real difference.

When in Doubt, Call Your Vet

None of these signs guarantee illness. A cat might hide more during a thunderstorm, eat less on a hot day, or have an off week after a household change. Context matters.

But if you notice any of these changes persisting for more than a few days, or if you see multiple signs at once, a vet visit is the right call. Early detection consistently leads to better outcomes and often lower treatment costs.

Catching What You Can't See

Subtle changes are hard to notice without a record to compare against. Pawey's weight tracking feature lets you log regular weigh-ins and see trends over time with simple sparkline charts. A downward slope that's invisible day to day becomes obvious on a graph. Combined with health records that keep your vet notes, medications, and observations in one place, you have a clearer picture of your cat's health than memory alone can provide.