First, the harm of smoking to tuberculosis patients 1, tuberculosis patients smoking can aggravate the cough, coughing increased, the patient feels uncomfortable. 2, tuberculosis lesions invade the capillaries and blood vessels in the lungs, coughing after smoking increases, the lung activity increases, the pressure in the lungs increases, the lung tissue pulls on each other, resulting in blood vessel rupture and hemoptysis, which is life-threatening in severe cases. 3, smoking aggravates the cough and sputum, causing the spread of tuberculosis bacteria in the lungs, which can aggravate or worsen the disease. Second, how does tuberculosis develop? When Mycobacterium tuberculosis first invades the body and starts to multiply, the body becomes specifically immune to Mycobacterium tuberculosis through the cell-mediated immune system, so that the primary lesions, hilar lymph nodes and Mycobacterium tuberculosis disseminated to all organs of the body stop multiplying, the inflammation of the primary lesions is rapidly absorbed or a small amount of calcified foci remain, the enlarged hilar lymph nodes gradually shrink, become fibrotic or calcified, and the Mycobacterium tuberculosis disseminated to all organs of the body is mostly eliminated. The majority of Mycobacterium bovis is eliminated, which is the most common benign process of primary infection. However, there are still a small number of Mycobacterium tuberculosis that have not been eliminated and remain dormant for a long time, becoming potential foci, and the Mycobacterium tuberculosis in these potential foci can grow and multiply again when the immune function of the body decreases. Some data show that people infected with tuberculosis bacilli have about 10% chance of developing active tuberculosis disease in their lifetime, and the chance of occurrence increases greatly when the body is immunocompromised. Third, the danger of irregular anti-tuberculosis treatment Irregular treatment is one of the important factors that cause a high rate of treatment failure, a high rate of relapse of tuberculosis, the development of drug-resistant strains, the spread of the epidemic, and increased treatment costs.