First observe its mental state. Sick dogs and strong dogs are easily distinguished in their expressions. If the dog shows listlessness, likes to lie quietly but does not like activities, is slow to respond to external stimuli, or even does not respond to, and in more serious cases, it will become a state of drowsiness. At this time, the owner should pay attention.
The dog has a good appetite and eats a lot, but its body still looks thin and its muscles are weak and loose. In addition, its coat is rough and not smooth, its tail hair is reversely erect and the color of the hair is dry. At this time, it is better to go to the pet hospital for a check-up.
I have lost appetite, and I am not interested in even the food I like most, or I only eat a little, and even walk away after smelling it. When the dog stands and walks, it looks weak and overwhelmed, and even licks its body frequently.
The breathing rhythm of dogs is relatively disordered, and even has difficulty breathing. It is generally manifested as often opening their mouths, stretching their heads and necks forwards, shifting their ribs forward and upwards, and expanding their elbows outwards. There are many sticky secretions in the nostrils, diarrhea, eye boredom, constant sneezing, and even more severe spasms and convulsions.