Mycobacterium tuberculosis, also known as Mycobacterium tuberculosis, is primarily an actinomycete subject, a genus of mycobacteria that consists of four types, human, bovine, avian, and murine, with the pathogenic type being the human type. Mycobacterium tuberculosis has no spores, no flagella, and cannot move the genus. If the growth needs to have an aerobic state and the growth is relatively slow, the resistance to the outside world is strong, resistant to dryness, sensitive to heat, ultraviolet light, ethanol. If boiled for one minute, with ethanol sterilization for two minutes can be inactivated. The disease caused by Mycobacterium tuberculosis is called tuberculosis, of which tuberculosis is the most common, and can form tuberculosis nodules, infiltration and caseous lesions, and there can also be cavity formation.