Poisoning after eating maitake mushrooms usually affects the digestive system first, and symptoms of the digestive system, such as bloating, abdominal pain, diarrhea, nausea, vomiting and other symptoms. If the nausea, vomiting or diarrhea is more intense, it is possible that the electrolytes in the body are lost, and there is a poor mental state and weakness in the limbs. If the toxin violates the central nervous system through blood circulation, there will be nausea, vomiting, dizziness, headache, limb incoordination, lack of concentration, and in serious cases, it will lead to deep coma, shock, central respiratory depression, and life-threatening. In addition, if the liver and kidney functions are affected, liver and kidney failure may occur and generalized jaundice, edema, oliguria or anuria may occur.