In general, qualified food will not cause diarrhea. 1. If there is consumption of yo-yo plum diarrhea, may be itself on the plum class of food allergies, can observe the intermittent consumption of repeated diarrhea, such as diarrhea, you can go to the hospital for allergen testing, diagnosis of allergies to the substance, you can avoid consuming the food, thus avoiding diarrhea. 2. Food over the shelf life or in the process of handling unhygienic lead, buy food attention to see whether over the shelf life and packaging is intact, such as no problem may be related to the processing of health problems, but the brand by the inspection of qualified food health problems are less common, can be observed to eat yo-yo plums at the same time whether to eat other foods, need to be analyzed comprehensively. If there is diarrhea after eating yo-yo plums should promptly seek medical attention to identify the cause of the disease after active treatment, so as not to delay the condition.