Potatoes and eggs boiled together are generally not poisonous, but it is not recommended to eat some sprouted potatoes or rotten eggs, if there is an adverse reaction should be timely medical treatment. These two foods can be cooked together to supplement the body with nutrients, and will not produce toxic or harmful substances, and generally will not cause poisoning. However, if spoiled, sprouted or greenish potatoes are consumed, the content of lobelia in them is high and poisoning may occur after consumption. In addition, if eggs containing foul smell are consumed, the eggs are spoiled and a large number of bacteria may be present, which may also cause the phenomenon of bacterial food poisoning. Therefore, when potatoes and eggs are cooked together, fresh, non-perishable ingredients should be selected and eaten in moderation to avoid toxic reactions and serious effects.