The hazards of disinfected water on the human body are divided into four major aspects: the hazards of the skin mucous membrane, the symptoms of the digestive system, the symptoms of the circulatory system and the hazards of the nervous system. First, disinfected water on the human skin can cause harm such as burning the skin mucous membrane, making the skin mucous membrane red, swollen, hot, painful, epidermal damage and other hazards. Second, the harm to the digestive system, the digestive system is particularly significant, such as accidentally drinking disinfected water will cause intense burning sensation and spasmodic pain in the esophagus, such as acid reflux, heartburn, nausea, vomiting, abdominal cramps, periumbilical cramps and abdominal cramps are significant, and occasionally patients will also appear diarrhea, black stool or vomiting blood. Third, the danger to the circulatory system may include arrhythmia, tachycardia, chest tightness, shortness of breath, discomfort in the precordial area and other symptoms. Fourth, the harm to the nervous system can stimulate the central and peripheral nervous system, causing dizziness, headache, disorientation, and different symptoms of the pyramidal and extrapyramidal systems. In short, disinfected water is very harmful to the human body, such as excessive consumption requires immediate access to a hospital.