Borax belongs to the strong alkali and weak acid salt, after taking borax by mistake will mainly affect the digestive tract, there will be abdominal pain, nausea, vomiting, acid reflux, heartburn and so on, especially with peptic ulcer or, bile reflux gastritis, duodenal reflux patients, there will be irritation digestive bleeding. In addition, after taking borax by mistake, there will be abdominal cramps, such as severe pain in the abdomen around the umbilicus, and there will be diarrhea, which can also lead to blood in the stool in severe cases. In addition, patients with previous cardiogenic diseases will experience a series of circulatory symptoms such as chest tightness, shortness of breath, palpitations, and discomfort in the precordial area after taking borax by mistake.