To determine mild lead poisoning, you can choose clinical symptoms, test results and other methods. 1. Clinical symptoms: Mild lead poisoning may lead to weakness, joint pain and muscle pain, and may also cause gastrointestinal discomfort, resulting in loss of appetite, bloating, nausea and other symptoms. 2. Examination results: Mild lead poisoning can also be judged by examination results, patients can do blood lead test and diagnostic lead test. Generally, the trace element lead content of adults should not exceed 100μg/L. If the blood lead exceeds the normal value, it may be mild lead poisoning, and if the urinary lead exceeds 3.866μmol/L after diagnostic lead test, it is necessary to be alert to lead poisoning. Patients with lead poisoning need timely treatment, you can follow the doctor’s advice to choose calcium edetate sodium injection, dimercaptosuccinic acid capsule and other drugs to treat lead poisoning.