TB symptoms may vary
The most common symptoms of TB are a cough that lasts over three weeks and coughing up sputum (phlegm rising from the lungs). The sick person may have a fever, lose weight and sweat heavily at night. The person may feel fatigued and lose their appetite. There may be other symptoms, depending on which part of the body is affected.
The symptoms of TB usually develop slowly. At the beginning symptoms are often mild and vague. A person might not have symptoms at all. However, small children can become seriously ill very quickly.
These symptoms can also be a sign of other diseases. Tests can be used to determine if they are caused by TB. A person with one or more of these symptoms should see a doctor.