Some of the symptoms of TB in the lungs are blood in the cough, fatigue, tiredness, chest pain, night sweats, weight loss, and fever. If the infection has spread from the lungs to other body parts, the patient may develop joint destruction, impaired kidney function, meningitis, and improper heart function.
Causes of Lung Infection
Mycobacterium tuberculosis is the bacterium responsible for causing tuberculosis. It can spread through the air when an infected person coughs or sneezes, or through the exchange of body fluids or sharing of foods.
When an individual breathes in the bacterium, it settles in the lungs and begins to grow. The infection can also spread to other body parts like the spine, kidney, and brain.