Mercury poisoning can still be detected for one month. Mercury is a silvery-white liquid metal whose monomers vaporize to become gas or mercury compounds enter the body, and the body is unable to metabolize the mercury metal and mercury ions, and poisoning occurs. It is mainly diagnosed by urine mercury test and blood mercury test. Elevated urine mercury and blood mercury suggest mercury poisoning. 1. Acute mercury poisoning is manifested by multiple organ system involvement and multiple organ failure, such as bleeding, vomiting, diarrhea, dizziness, chills, hematuria and other symptoms. 2. Chronic mercury poisoning is characterized by headache, dizziness, forgetfulness, dreaminess, rapid heartbeat, often accompanied by panic, mental retardation and other symptoms, which is the patient’s prolonged exposure to mercury products, mercury ions accumulated in the body to appear poisoning phenomenon. Long-term exposure to mercury preparations or people taking mercury products, once the dizziness, insomnia, chest tightness, urinary symptoms such as timely to the hospital.