Symptoms of Labrador illness:

1. Generally, sick Labradors have a dry nose and fever, sometimes accompanied by runny nose, cough, etc.

2. When Labrador is sick, he will be physically weak or in pain, and his spirit will be listless.

3. If the Labrador has unusually loose stools, blood in the stool, a foul odor, or a small amount of hard stool, the Labrador must be sick.

4. If the Labrador eats the same amount as usual, or even eats more, but still loses a lot of weight, it is likely that there is a problem with the Labrador's metabolism or heart. The problem may be that there are parasites in the Labrador.

Measures to prevent dog illness:

1. Vaccinate your dog when it is two months old to ensure its healthy growth.

2. Regularly check the dog’s mouth and teeth, and use gauze to clean the tartar regularly.

3. The dog’s living environment should be relatively ventilated and should be disinfected regularly.

4. Take your dog for exercise regularly. As owners, we should take our dogs for a walk every day so that they can run freely outside.