Pet owners and veterinarians alike often rely on subtle clues to determine a cat's health. It's important to check for signs of physical well-being in any cat you may consider for adoption or one that already shares your home.

Look for these ten traits to track your cat's health and well-being.

1. Activity level: The link between curiosity and cats is more than just folklore. Healthy cats should be eager to explore their environment and anxious to play. Grooming is also a big part of every cat's daily routine, but a cat that is not feeling well will not take any interest in this feline ritual.

2. Socialization: Every cat has a certain level of tolerance for humans, but even the most aloof feline should enjoy at least some human company and tolerate the company of other cats in the environment.

3. Body weight: A cat should appear to be in good physical condition. When stroking the cat, you should be able to feel - but not see the ribs. That cute potbelly may be a sign that your cat has an underlying medical condition.

4. A lustrous coat: Healthy cats have bright, sleek and glossy coats. Excessive shedding or scaling or any signs of patchy hair loss may be indications of poor health or a skin disorder. Also check for signs of fleas.

5. Bright, clear eyes: There should be no evidence of discharge around a cat's eyes, and the third eyelids should not be protruding across the eyes.

6. A moist, cool nose: Most cats have moist, cool noses that show no evidence of discharge. Watch for sneezing, which may be a sign of respiratory infection.

7. Clean teeth: The tongue and gums of a cat's mouth should be a healthy shade of pink, not swollen or inflamed. Teeth should be free of tartar.

8. Clean ears: The ears should be clean and free of waxy buildup, and there should be no evidence of scratches or hairlessness around the ears.

9. A clean smell: Healthy cats have a pleasant, sweet smell. Objectionable odors may be a sign of skin disease, dental problems or medical disorders. Cats that use the litter box frequently, pass blood or strain to eliminate waste should be examined immediately by a veterinarian.

10. Muscle soreness: Cats that limp or act sore when they are handled may have problems in their bones or joints, or they may be injured. If you notice your cat limping or nursing a sore spot, have your veterinarian perform an examination.