Generally even a small amount of mercury in the body can lead to poisoning, with mild poisoning occurring in about 5 minutes, such as varying degrees of dizziness as well as diarrhea or nausea. During this time, drinking a lot of water can effectively reduce the occurrence of poisoning. In fact, the mercury content in thermometers is so small that the mercury accidentally ingested is absorbed less through the digestive tract and does not cause perforation of the digestive tract and other hazards, nor does it cause death because of the mercury content in thermometers. Although mercury is not enough to kill people, but after all, it is toxic. Thermometers should be cleaned up promptly after damage, and the broken mercury should be put into plastic bags, glass bottles and other closed spaces and thrown away as soon as possible to prevent pollution of the environment. To be precise, mercury poisoning is caused by a broken mercury thermometer, so be sure to pay attention to the occurrence of this situation.