Bacterial endotoxin detection methods, one is currently the gel method, the other is photometric, most are measured photometrically, can get a quantitative result, so the results are also more reliable. Endotoxin is actually a lipopolysaccharide on the cells of Gram-negative bacilli, and after the death of this bacterium, these cell wall lipopolysaccharides are released, which is a thermogenic substance, and when this endotoxin enters the bloodstream, it can cause fever. So it is necessary to check this aspect, sometimes it is an infectious disease, I don’t know if it is a viral infection, bacterial infection, or fungal infection, it is necessary to check with endotoxin, observe if it is higher than normal, if it is higher than normal, then it may be an infection on the bacterial side, the endotoxin side is indeed a negative bacillus, it may be a gram negative bacillus infection, the doctor may need to control the condition with anti-negative bacillus drugs.