Mycobacterium bovis for injection is commonly used as an injectable dosage form, which acts as a two-way immunomodulatory agent to improve the body’s immune function and inhibit tuberculosis infection. Mycobacterium bovis for injection is a two-way immunomodulatory preparation, clinically used in combination with other drugs, used as an adjuvant for tuberculosis, the drug can also be used for people aged 15-65 years with latent infection of Mycobacterium tuberculosis, to prevent the onset of its disease. It should be noted that the use of Mycobacterium henselae for injection is prohibited for those who are allergic to any components of this drug, pregnant women, extremely debilitated persons, persons with severe anemia, as well as patients with acute febrile illnesses, severe heart disease, myocardial damage, endocarditis, severe hypertension, significant vascular sclerosis, and acute or progressive hepatic or renal disease. Some patients may experience adverse reactions such as fever, cough, headache, malaise, rash, redness and itching at the injection site, etc. If the discomfort is serious, the patient should inform the doctor in time so that appropriate treatment can be carried out. Mycobacterium bovis for injection should be used under the guidance of a professional doctor, and patients should not use the drug on their own, so as not to affect the condition, or side effects.