People with blood coagulation problems can't eat black fungus. It is especially important to note that people who have high blood pressure, hyperlipidemia and hyperglycemia have a higher risk of eating black fungus. Take patients with hemorrhagic stroke as an example, the bleeding in the brain is in urgent need of hemostasis, but the anticoagulant function of auricularia auricula may slow down the coagulation speed and increase the risk. Therefore, it is generally recommended to avoid eating a lot of black fungus before and after surgery and tooth extraction. People with spleen and stomach problems can't eat black fungus ※ Patients with spleen and stomach deficiency and cold constitution, such as cold stomach, indigestion and diarrhea. ※ Patients with abdominal distension, pain, diarrhea or acute gastroenteritis after eating. A person who feels weak or has a cold pain in the abdomen during menstruation. ※. Older people, infants and other people with weak stomachs.