Foaming at the mouth is a symptom of many diseases, foaming at the mouth is mainly due to a variety of reasons that lead to excessive secretion of salivary glands in the human mouth, producing a large amount of saliva, accompanied by gastric juice from the stomach, will appear the phenomenon of foaming at the mouth, in the clinical cause of foaming at the mouth of the following diseases: 1, when the epileptic seizure patients will appear suddenly fainted, foaming at the mouth, the whole body convulsions and other symptoms; 2, when the patient appears When the patient has food poisoning, there will be white foam at the mouth, eyes rolled up, limbs twitching and other serious situations; 3, part of the patients due to gastrointestinal diseases will cause nausea, vomiting, white foam at the mouth and other phenomena; 4, acute pesticide poisoning after the patient also due to increased gland secretion phenomenon of white foam at the mouth.