Cats have symptoms of parasites:

1. Frequent vomiting. Cats infected by parasites usually have symptoms such as vomiting and abdominal pain. This may be caused by bacterial growth caused by unhealthy diet, or by accidentally eating food containing parasites.

2. Physical discomfort. When cats experience symptoms such as vomiting, diarrhea, loss of appetite, and listlessness, it may be caused by parasitic infection.

3. There are foreign bodies in the excrement. If your cat has frequent diarrhea and the feces contains parasites similar to insect eggs, it needs to be fed deworming medicine in time to deworm it.

4. Thin body. The cat's belly is swollen, but his body is very thin. He eats a lot but does not gain weight. Instead of gaining weight, the cat loses weight.

5. Scratch your cheeks. In addition to rubbing its butt, the cat will frequently scratch its ears and lick its body in various ways. There should be fleas on the cat's body.

6. Dry hair. The cat's hair is dry and dull, and there are small black particles on the hair. If you dissolve these small black particles in water, blood will appear, indicating that the cat has external parasites.