Toothpaste contains fluoride and other chemicals. If a small amount of toothpaste is eaten, there is no special symptom, but if the chemicals eaten may affect the reaction of the gastrointestinal tract, resulting in nausea, vomiting, bloating, abdominal pain, diarrhea and other gastrointestinal symptoms. If the diarrhea is strong, electrolytes in the body may be lost, resulting in symptoms such as poor mental health and weakness. In addition, if a large amount of toothpaste is taken, swallowing it into the stomach may also lead to the absorption of the chemicals in it through the bloodstream, thus violating the central nervous system in the body and causing dizziness, headache, nausea, vomiting or even coma.