Tetanus bacilli do not always survive in the bloodstream, which is related to the characteristics of the pathogen itself, and the corresponding pathogen does not survive for a long time inside the bloodstream. Tetanus bacillus is an anaerobic bacterium, which is widespread in nature and lives mainly in the form of spores. After a deep wound has been inflicted, the local closure of the wound is anoxic, which can cause tetanus bacilli to multiply, which can further cause the corresponding toxins to enter the body and cause abnormalities in the physical condition. However, the pathogen itself does not have a long incubation period and does not remain in the bloodstream. Contaminated wounds in daily life, deeper wounds and smaller external openings require prompt hospitalization and regular application of tetanus antitoxin under the guidance of the clinician to prevent the onset of the disease.