The manifestations of herbicide poisoning are related to the route, amount and rate of toxicant intake and the underlying health status of the body. Such as paraquat and other herbicides, poisoning is often manifested in contact with skin erosion, ulceration, necrosis and other local manifestations, and cough, diarrhea, coma and other systemic symptoms. 1. Local manifestations: skin contact can appear erythema, erosion, necrosis; oral intake of oral cavity, esophageal mucosa will appear burns and ulceration; inhalation can appear nosebleed and so on. 2. Systemic symptoms: respiratory system damage such as cough, shortness of breath, pulmonary edema, pneumothorax and expiratory failure; digestive system damage such as retrosternal burning, nausea, vomiting, abdominal pain, diarrhea, gastrointestinal hemorrhage, liver damage and necrosis; other systemic symptoms such as palpitations, chest tightness, coma, convulsions, hematuria, proteinuria, shock. In case of herbicide poisoning, please go to the hospital immediately for treatment to avoid life-threatening injuries.