The sudden drop in intra-abdominal pressure and diaphragmatic descent during delivery can cause lung tissue expansion, which, combined with low body resistance after delivery, can lead to worsening of tuberculosis. The rate of postpartum deterioration of severe tuberculosis can be as high as 52%. Tuberculosis also poses a significant risk to the fetus. According to clinical data, the rate of postpartum deterioration of severe tuberculosis can be as high as 52%. Tuberculosis is also harmful to the fetus, as the tuberculosis bacillus spreads through the bloodstream and invades the fetus, causing the fetus to become infected with tuberculosis. In addition, the fetus suffers from hypoxia and malnutrition due to high fever and reduced lung function, which often leads to growth retardation, miscarriage, premature birth or stillbirth. Pregnant women need to consume more energy to meet the growth of the fetus in October, and if TB is not treated during this period, it can rapidly worsen the condition of the pregnant woman and can be transmitted to others during the active stage of TB. If treated during pregnancy, patients need to take anti-tuberculosis drugs for a long time without interruption. For example, streptomycin, which can enter the fetus through the placenta, may cause hearing impairment in the newborn and often leads to fetal malformation or death; rifampin, when used during the first three months of pregnancy, has the potential to cause fetal malformation; although isoniazid (Remifentan) and ethambutol are safer, clinically it can be seen that the use of large amounts of isoniazid throughout pregnancy may still cause malformation. In addition, patients with tuberculosis often undergo X-ray fluoroscopy or radiographs during treatment, and X-rays can be harmful to pregnant women and their fetuses. During pregnancy, a woman’s metabolism, blood circulation, immunity, endocrine and respiratory system functions are all altered, which adversely affects tuberculosis. For example, nausea, vomiting and loss of appetite occur during early pregnancy, which can affect the nutritional absorption of pregnant women and aggravate tuberculosis; the sudden drop of intra-abdominal pressure and diaphragmatic descent during delivery can cause the expansion of lung tissue, which, together with the low resistance of the body after delivery, can lead to the deterioration of tuberculosis. Therefore, from any point of view, pregnancy during tuberculosis is not beneficial to mother and child.