Eating shrimp heads may lead to gastrointestinal discomfort or even heavy metal poisoning. Generally speaking, in the shrimp head in the shrimp stomach, bladder, pancreas and other organs, which contains shrimp feces, etc., easy to have parasites and bacteria. If the cooking temperature, time is not enough and human consumption is likely to lead to diarrhea, abdominal pain and other gastrointestinal discomforts, in addition to the growth environment if the shrimp have heavy metals, human consumption of shrimp head may lead to heavy metal accumulation in the body. Shrimp protein-rich, summer is to eat shrimp season, remember to eat in moderation, and be sure to eat after high-temperature cooking shrimp, remove the shrimp head shrimp line, so as not to cause discomfort, if there are symptoms of food poisoning in time to go to the hospital.