Dog Health Checklist | Daily Observation Points and Signs of Illness
This article explains daily health check methods to detect changes in your dog early. It covers how to examine your dog's eyes, ears, skin, and stool, how to interpret weight changes, and provides detailed information on signs that require veterinary care such as loss of appetite, vomiting, and coughing.

Key Takeaways
This article explains daily health check methods to detect changes in your dog early. It covers how to examine your dog's eyes, ears, skin, and stool, how to interpret weight changes, and provides detailed information on signs that require veterinary care such as loss of appetite, vomiting, and coughing.
Catching Changes in Your Dog Early | Make Daily Health Checks a Habit
Dogs cannot tell us when they're not feeling well through words. A subtle sign like "he seems a bit less energetic than usual" or "his appetite seems slightly off" — the owner's ability to catch these small changes early is directly connected to early detection and treatment of illness. By incorporating checks into your daily interactions with your dog, caring for your dog's health naturally becomes a habit. This article covers everything from daily checks by body part, weekly confirmation items, to emergency signs that require immediate veterinary care.
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Daily Checklist by Body Part
Eye Check
The eyes are a body part where health status is particularly evident. A small amount of light-colored discharge is within normal range, but large amounts, yellowish-green, or pus-like discharge may indicate conjunctivitis or keratitis. Pay close attention if the whites of the eyes are bloodshot, if tears are constantly flowing, or if your dog is squinting as if the light is bothering him. If the whites of the eyes or eyeballs appear yellowish, this may be a sign of jaundice, suggesting liver or gallbladder disease.
Ear Check
Gently look inside the ears and check the color, amount, and odor of earwax. Healthy dogs' ears are nearly odorless with minimal earwax. Black earwax, strong foul odor, or redness and swelling may indicate otitis externa (outer ear infection). Signs such as your dog frequently shaking his head, scratching his ears with his back legs, or rubbing his ears on the floor are also indicators of ear problems. If left untreated, these can develop into middle ear infections, so address them early.
Mouth, Teeth, and Gums Check
Bad breath is a typical sign of periodontal disease. If brown or yellow hard buildup (tartar) is attached to the tooth surface, bacteria will proliferate and progress to gingivitis and periodontal disease. The color of the gums is also an important indicator. Healthy dogs' gums are salmon pink. If they appear white or pale, this is a sign of anemia, internal bleeding, or shock—symptoms requiring immediate attention. If they appear purple, oxygen deficiency (cyanosis) may be suspected.
Skin and Coat Check
Use daily brushing or petting time to check your dog's skin condition. Excessive dandruff, redness, rashes, scabs, or increased hair loss are signs of skin disease. If your dog frequently scratches or continuously licks a specific area, there may be itching or pain. Lumps or swelling are changes you can only notice through daily touching. Especially in older dogs, the risk of tumors increases, so develop a habit of carefully checking for any hard lumps under the skin.