Fava bean disease is a genetic disease, the body lacks Glucose 6-phosphate dehydrogenase (G-6-PD), children consuming fava beans triggers the rupture of red blood cells, hemoglobin is excreted through the urine, leading to severe anemia, urine soy sauce urine, mental discomfort, if not treated in time, can lead to coma, convulsions and acute renal failure, the child is even life-threatening, so the onset of the disease should be timely medical treatment. The onset of fava bean disease is rapid, and most of the hemolysis occurs within 1 to 2 days after eating fresh fava beans, with the shortest being only 2 hours and the longest being 9 days apart. If the onset of the disease is due to inhalation of broad bean pollen, the symptoms can appear within minutes. A. Why do you get fava bean disease Fava bean disease is not the same as the nature of ordinary allergies, belong to a genetic defect, inherited from parents to their children, these people are born with a lack of an enzyme called glucose-6-phosphate dehydrogenase (G6PD) on the red blood cell membrane, and some of the oxidizing substances contained in fresh fava beans, for children lacking this enzyme, is very likely to cause acute hemolytic jaundice and hemolytic anemia. Fava beans have become a deadly “poison”. Provinces and cities south of the Yangtze River are high incidence areas, such as Hainan, Guangdong, Yunnan, Guizhou and other places. The incidence is significantly higher in young children than in adults, with 70% of the total number of patients under 3 years of age, and far more male than female babies. Although the chances of this kind of thing is not high, but do not allow a little carelessness. Second, the prevention of sericea is the key 1, because this disease is hereditary, if one parent has “sericea”, it is recommended that the baby, especially male babies tested for glucose-6-phosphate dehydrogenase (G6PD) or do the relevant genetic testing. 2, parents should pay special attention to the baby’s reaction when they first give him or her fava beans, if after eating fava beans there is general discomfort, fatigue, dark urine symptoms, be sure to take the child to the hospital in a timely manner. 3, if a diagnosis of fava bean disease has been made, it is accompanied by a lifetime, will not become lighter or disappear, that is to say, prohibited drugs or caution drugs are forbidden for life. Third, if the child suffers from broad bean disease, parents should pay attention to 1, broad bean disease does not have to be eaten only to get, some people even smell the bean fragrance of broad beans, dip the bean pollen, are likely to develop. In the broad bean flowering, fruit or harvest season, parents should avoid taking their children to the broad bean field. 2, remember to prohibit the consumption of fava beans or fava bean raw processed products, such as vermicelli, bean paste. 3.Naphthalene contained in mothballs can also cause hemolysis. If the collection of clothing using mothballs, before wearing clothes to be exposed to the sun. 4.Beware of insecticide spray. Some insecticide sprays can make blood dissolve, so extra care should be taken when using them. 5, when you go to the doctor must clearly tell the doctor, the child for sericea patients, please doctor reasonable use of drugs. 6, blood transfusion is the most effective method of treatment of sericea, in addition to more hydration, regulate the electrolyte balance in the body to prevent kidney failure or potassium toxicity. Conclusion: Broad bean disease is a genetic defect, there are children with broad bean disease, eating fresh broad beans may develop, eating broad bean products, etc. may also develop. Once a child with fava bean disease, even in infancy through the lactating mother after eating fava beans may develop, there is no age limit before or after the age of 8 years.