What are the symptoms tuberculosis have on lungs?

Symptoms of pulmonary (lung) tuberculosis

Tuberculosis (TB) primarily affects the lungs (pulmonary TB). Signs and symptoms of pulmonary TB may include:

* A persistent cough lasting more than two weeks

* Coughing up blood or mucus

* Chest pain or discomfort with breathing or coughing

* Unintentional weight loss

* Fatigue

* Fever

* Night sweats

* Chills

* Loss of appetite

Tuberculosis (TB) that spreads outside of the lungs

In some people, TB spreads through the bloodstream to other parts of the body, including the kidneys, spine or brain. Signs and symptoms of TB outside the lungs (extrapulmonary TB) depend on the organs or systems involved.

When to see a doctor

See your doctor if you have a cough that lasts more than two weeks or other signs or symptoms that worry you. Early diagnosis and treatment for TB is essential for a successful outcome.

Symptoms of latent tuberculosis

Most people infected with TB bacteria don't have active disease. Instead, they have latent TB. With latent TB, the bacteria remain in the body in an inactive state. People with latent TB usually have no symptoms and can't spread the infection to others.

However, people with latent TB can develop active TB disease if the bacteria become active. The risk of developing active TB is greatest within the first few years after becoming infected.