Tuberculosis is caused due to infection with mycobacterium tuberculosis, but everyone, who gets infected with the germ does not develop the disease. In most cases, the immune system can prevent you from becoming sick and only about 10% of people infected with M. tuberculosis go on to develop tuberculosis.
The signs and symptoms of the disease do not become evident in most cases of TB until the disease has advanced.
Common signs and symptoms of active TB include:
Having these signs and symptoms does not mean that you have tuberculosis. Many other diseases can cause similar symptoms and therefore, the symptoms may easily be blamed on another disease.
What organs are affected?
Signs and symptoms of active TB may also vary depending on the organ that is affected. In most people, the lungs are affected. Signs and symptoms of TB of the lungs include:
Tuberculosis can affect organs other than the lungs in about 15% of people. About 25% of these people have a history of TB with inadequate treatment. The other organs that are affected by TB include:
When TB affects other parts of the body, symptoms vary according to the organs involved.
Apart from these symptoms related to the organ that is affected, a person with active TB in any organ also has the following signs and symptoms:
If you think you may have been exposed to someone with TB disease, contact your health care provider or your local or state TB control office.
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