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Tuberculosis (TB) - Symptoms

If you have latent tuberculosis (TB), you do not have symptoms and cannot spread the disease to others. If you have active TB, you do have symptoms and can spread the disease to others. Which specific symptoms you have will depend on whether your TB infection is in your lungs (the most common site) or in another part of your body (extrapulmonary TB).

There are other conditions with symptoms similar to TB, such as pneumonia and lung cancer.

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Lung Injuries

A lung injury can occur in many ways. A car accident could cause a harmful blow and a punctured lung. Or lungs can become injured from inhaling harmful chemicals. A lung injury can even occur while being treated in the hospital for an infection or while on a ventilator. If you or someone you love has an injured lung, you may want to understand better how it occurred and what your health care providers are doing to help. Take WebMD's Lung Disease Health Check

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Symptoms of active TB in the lungs

Symptoms of active TB in the lungs begin gradually and develop over a period of weeks or months. You may have one or two mild symptoms and not even know that you have the disease.

Common symptoms include:

  • A cough with thick, cloudy, and sometimes bloody mucus from the lungs (sputum) for more than 2 weeks.
  • Fever, chills, and night sweats.
  • Fatigue and weakness.
  • Loss of appetite and unexplained weight loss.
  • Shortness of breath and chest pain.

Symptoms of an active TB infection outside the lungs

Symptoms of TB outside the lungs (extrapulmonary TB) vary widely depending on which area of the body is infected. For example, back pain can be a symptom of TB in the spine, or your neck may get swollen when lymph nodes in the neck are infected.

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WebMD Medical Reference from Healthwise

Last Updated: April 04, 2013
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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