Raw beans contain a toxic protein, called lectin, which can agglutinate blood cells. If beans are left for too long, they can produce a large amount of nitrite, causing denatured hemoglobin. Nitrite can be decomposed and destroyed at high temperature, and if you eat half-baked beans, it can cause poisoning. Many citizens like to blanch them in hot water and make cold dishes. Some citizens are greedy for crispness when frying beans, but as a result, they cannot completely destroy the toxins contained in them. Poisoning symptoms will appear after eating immature beans for less than 4 hours. The main symptoms are gastroenteritis, such as nausea and vomiting, several times or more a day. Abdominal pain and diarrhea also occur. In severe cases, neurological symptoms such as dizziness, headache, sweating, chest tightness, palpitation and numbness of limbs may occur. After the above symptoms appear, you should go to the hospital for examination and treatment in time.

People with mild poisoning can generally heal themselves. However, because there is no specific antidote for bean poisoning at present, people with severe poisoning can only be sent to hospital for emergency treatment except vomiting and gastric lavage, and generally take symptomatic treatment.

-Like you, vomiting can generally heal itself, but if there are other discomforts, it is better to go to a hospital or a nearby clinic.