Volvariella volvacea is a fungus. Generally speaking, it tastes good and not bitter. Once bitter, it shows that the characteristics of Volvariella volvacea have changed and there are toxins. Poisoning will be caused after eating, so you should go to the emergency department of a regular public tertiary hospital for examination and diagnosis in time, make clear the condition, and the specialist will take corresponding treatment and treatment according to the actual situation to avoid danger.