Cosmetic mercury is a metal ion and there are different types of symptoms in mild, moderate and severe cases of poisoning. In mild mercury poisoning, there are symptoms of digestive and respiratory discomfort, such as breathlessness, nausea, vomiting, abdominal pain, diarrhea, unformed stools, watery stools, and so on. In moderate poisoning, on top of the mild degree, there will be neurological symptoms such as dizziness, headache, resting tremor, tremor paralysis and symptoms of the pyramidal and extrapyramidal systems. In severe poisoning, there will be cardiac arrhythmia, severe neurasthenia, hair loss, anemia, and even blood coagulation in the blood system and other serious conditions, such as severe horseshoe crab poisoning need to be promptly diagnosed in the hospital blood test immediately after consultation.