It can be eaten, but remember to cook it before eating. Fish, shrimps, screws and other animals in fresh water are prone to carry parasites. If these parasites are not killed and eaten into the human stomach, some of them cannot be killed and will multiply in the human body. In particular, amphibians are prone to carry sparganas. For example, it is extremely harmful after entering the human body and can feed on human brains and reproduce. Therefore, it is best to cook freshwater animals before eating them, as this will kill all harmful parasites and microorganisms. Some people like to eat drunken shrimps and very tender fried screws, but these are actually very risky. The soft bodies of fish in the ocean are relatively much better, the possibility of carrying parasites on the body is very small, and the risk of eating them raw is smaller