Nontuberculous Mycobacterial Lung Disease: Symptoms & Signs

Medically Reviewed on 7/30/2020

Nontuberculous mycobacterial (NTM) lung diseases are rare infections of the lung. NTM are found in air, water, and soil. The term nontuberculous refers to the fact that unlike other types of Mycobacteria such as M. tuberculosis, these bacteria do not cause tuberculosis. The most common type of NTM lung infection in the United States is due to the group of bacteria in the M. avium complex (MAC).

Signs and symptoms of NTM lung disease depend on the severity of the infection. Symptoms and signs can include

Sometimes, fever, chills, or night sweats may occur. The symptoms resemble those of tuberculosis but are typically less severe.

Causes of nontuberculous mycobacterial (NTM) lung disease

Nontuberculous mycobacteria (NTM) cause nontuberculous mycobacterial (NTM) lung disease.

Other nontuberculous mycobacterial lung disease symptoms


COPD (chronic obstructive pulmonary disease) is the same as adult-onset asthma. See Answer

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Jameson, J. Larry, et al. Harrison's Principles of Internal Medicine, 20th Ed. New York: McGraw-Hill Education, 2018.