When water chestnuts and water chestnuts grow in ponds, they are easily infected by ginger worm larvae and attach to the surface of water chestnuts or water chestnuts to form cysts to survive. If we eat raw water chestnuts or raw water chestnuts, the larvae of Fasciola zingiberensis will enter the human body, live in the intestine, absorb nutrients in the intestine, and soon grow into adults, causing intestinal mucosal inflammation, and patients will feel abdominal pain, bloating, loss of appetite, and diarrhea, which is harmful to health.

If you peel it after cooking, you won't be infected with ginger worms. Therefore, water chestnut or water chestnut should never be eaten raw.