How long it takes for the inflammatory foci of tuberculosis in the lungs to be absorbed after treatment with anti-tuberculosis drugs depends mainly on the severity of the disease and the effect of the treatment, and is also related to the individual’s physical condition. Generally, for early stage tuberculosis treated for the first time with anti-tuberculosis drugs, there will be absorption of tuberculosis foci after more than one month of treatment. For more serious or recurrent TB foci, it usually takes half a year or even more than a year of treatment for the TB foci to gradually absorb. There are also some patients who are completely cured through standardized anti-tuberculosis drug treatment, and some of the calcified and fibrotic foci in the lungs will remain in the lungs permanently.