First, mental state. Healthy dogs: active, energetic, responsive, close to people, playing with people and alert. Sick dog: depressed, standing or lying down, inactive; Slow response or panic, like to attack people, keep barking, blind activities, running around, etc.
Second, the coat. Healthy dogs: soft and shiny, clean and tidy, neatly combed, without knots, hair removal, lice, mites and parasites. Sick dog: Contrary to the above situation.
Third, the skin. Healthy dog: soft and elastic, with normal body temperature when touched by hand. Sick dog: poor elasticity or dryness, or fever to the touch, baldness, ulcer or scab on the skin.
Fourth, the nose. Healthy dog: the nose mirror is cool, no runny nose, no sneezing. Sick dogs: dry or broken nasal endoscope, fever, nasal secretions.
Fifth, the eyes. Healthy dog: bright, bright, clean, no secretion, pink conjunctiva, right and left size commensurate. Sick dog: there is shit in the corner of the eye, or tears, conjunctival congestion or paleness, and dull eyes.
Sixth, ears. Healthy dog: flexible ears, clean and tasteless ear canal. Sick dogs: have secretions and odors or often tilt their heads to one side.
Seven, the mouth. Healthy dogs: The mouth is completely closed, clean and moist, with pink gums and lips, no salivation and no peculiar smell when exhaling. Sick dogs: abnormal gum and lip color, bad breath, cough or vomiting.
Eight, anus and feces. Healthy dogs: the anus is tight, the surroundings are clean, and the feces are soft and hard. Sick dog: loose anus with filth, or ulcer and abnormal feces.
Nine, appetite. Healthy dog: Good appetite and normal diet. Sick dog: regardless of diet or just drinking water without eating.
Ten, limbs. Healthy dogs: running back and forth, walking and running at a normal pace. Sick dog: limping, with two forelimbs coming together inward or diverging outward.