Mercury is a heavy metal and is generally not easily absorbed by the gastrointestinal tract after accidental ingestion and poisoning occurs. However, if it stays in the gastrointestinal tract for too long, symptoms of poisoning may occur. Usually, the patient will have symptoms in a few hours, but in a long time, the patient will have symptoms in a dozen hours. Close observation is needed to prevent the patient from developing symptoms of acute mercury poisoning, such as dizziness, headache, abdominal pain, diarrhea, drowsiness, weakness, nausea, vomiting, muscle aches in the limbs, and in severe cases, irritability, irritability, insomnia, dreaminess, and emotional agitation. The digestive tract will manifest as swollen and painful gums, oral erosion, mouth ulcers, loose teeth, and even bleeding gums. Severe symptoms such as bloody stools and peritonitis shock can occur. Further severe cases can lead to edema, oliguria, anuria, azotemia, hyperkalemia, and patients can also have acidosis, hematuria, and allergies. When the mercury thermometer is accidentally dropped on the ground, the mercury will be scattered, and the small mercury beads should not be picked up by hand, because the mercury beads are mercury agents, and mercury agents are toxic to the body. You can use a small broom to gather it, and then use a small paper tube to collect it in an airtight container and give it to a professional for recycling.