Nausea and vomiting after eating flower nails may first be related to the nails themselves. Fishnails are shellfish, which are difficult to clean themselves. When consumed, due to the negligence of the store, or its own lack of freshness, resulting in unclean handling of the ingredients. Therefore, if you consume it, you will always have nausea and want to vomit. However, it is also possible that it is caused by an allergy to flower nails, because there has been no history of consumption before, so it is not clear that there is an allergy to it, resulting in nausea and vomiting all the time after accidentally consuming it. It is also possible that the patient’s own intestinal tract was more fragile and sensitive during that period of time, so it would be easier to be nauseous when eating flower nails. It may be because before eating flower nails, their own intestinal tracts had some disease problems, so they were nauseous and wanted to vomit after eating flower nails, which had little to do with the problems of flower nails themselves.