Sweet potatoes are moldy and cannot be consumed. Sweet potato is a kind of food containing starch and water, suitable for bacterial breeding and growth, when the sweet potato skin appears brown or black spots, said sweet potato internal has been completely contaminated by black spot bacteria, can not be eaten. If you eat moldy sweet potatoes, it will lead to human gastrointestinal stimulation, resulting in physical discomfort, common nausea, vomiting, diarrhea and other gastrointestinal symptoms, serious patients may also have fever, headache, confusion, asthma, and even accompanied by coma, convulsions, vomiting of blood, etc., to avoid consuming moldy sweet potatoes. If accidentally ingested, no need to be overly nervous, can be observed for a period of time on their own, if there are uncomfortable symptoms, need to go to the hospital in a timely manner, timely inform the doctor’s condition, under the guidance of the doctor for standardized treatment.