There is no specific method to detect the radiation content in the human body, usually in addition to exposure to radioactive materials will bring a lot of radiation, other ordinary electronic products with a small amount of radiation, basically the body can metabolize itself. The following symptoms often occur when the body exceeds the radiation level: First, spontaneous bleeding, radioactive bleeding from the mouth, gums, anus and other parts. Second, unexplained nausea, vomiting, the more radiation the more urgent the onset of this symptom, part of the radiation dose of serious patients, in about an hour after the radiation began to nausea, vomiting, and then may also face death. Third, hemorrhagic diarrhea. Fourth, irreversible hair loss. Fifth, skin shedding, radiation is lighter when the radiation skin areas appear similar to sunburn, blisters and other symptoms, serious will appear open ulcers and shedding. Sixth, easy to feel very tired. Seventh, prone to mouth ulcers, and may also occur in the esophagus ulcers. Eighth, susceptible to invasion and infection by bacteria and viruses.