Old tuberculosis can be breastfed. Old tuberculosis means that the tuberculosis has been cured and is not contagious and does not affect breastfeeding. This is because a patient with old TB is in a sense a healthy person, similar to a patient who has had pneumonia and recovered from anti-infection treatment. However, TB is a chronic infectious disease that takes longer to treat and may leave a scar in the lung after treatment. Like other diseases, patients recover from old tuberculosis and can get married and have children, and breastfeeding is not a problem, so don’t worry. Nowadays, breastfeeding is promoted because there are many antibodies in breast milk. Because there is no tuberculosis activity in the body of patients with old tuberculosis and the anti-tuberculosis treatment has been stopped long ago, there is no effect on infants and children, so they can breastfeed without worry.