Natural gas poisoning is not the same as carbon monoxide poisoning. Natural gas poisoning is mainly due to the toxic reaction to the human body caused by the presence of hydrogen sulfide or other toxic gases in natural gas. The main component of natural gas is methane, which is not toxic in itself, but inhaling large amounts of methane can lead to asphyxiation and lack of oxygen, causing poisoning. Carbon monoxide poisoning is very familiar to all of us, which is usually called gas poisoning. It often occurs in winter, when coal or gas burning can produce a large amount of carbon monoxide under poor ventilation, and carbon monoxide is highly combined with oxygen in the human body, which can inhibit the combination of hemoglobin and oxygen in the human body, resulting in the poor ability of hemoglobin to transport oxygen, leading to tissue hypoxia and causing poisoning. The symptoms of natural gas poisoning and carbon monoxide poisoning are also different. Natural gas poisoning is mainly a chemical toxicity poisoning, which can damage the nerves, cause brain edema and cause shock. Carbon monoxide poisoning mainly causes oxygen deprivation in the human body, resulting in cyanosis, cerebral hypoxia and other poisoning phenomena.