Symptoms of thermometer mercury poisoning generally include nausea and vomiting, diarrhea and abdominal pain, dizziness and headache, and other symptoms of poisoning. The main manifestation of thermometer mercury poisoning is accidental ingestion. Mercury was accidentally taken orally, may first appear in the mouth with a metallic taste or burning sensation in the throat, followed by nausea and vomiting, diarrhea and abdominal pain, if the symptoms are serious may also appear peripheral circulatory failure, gastrointestinal perforation, the patient should be promptly to the hospital for gastric lavage and vomiting treatment. If the body temperature table breaks should immediately leave the place of poisoning, breathing fresh air, must keep well ventilated, and under the condition of oxygen. If mercury poisoning occurs inadvertently should be immediately sent to the hospital for treatment, timely gastric lavage or other ways to remove mercury in the body, so as not to cause more serious consequences.