The symptoms of TB can appear slowly and they may vary

The most typical symptoms of TB are a cough that lasts over three weeks and coughing up sputum. The sick person may have fever, lose weight and sweat heavily at night. The person may feel weakness and lose appetite. There can be also other symptoms, depending on which part of the body is affected.

Symptoms appear usually slowly. At the beginning symptoms are often not so clear. Some might not have symptoms at all. However, small children can become seriously ill very quickly.

These symptoms can result also from other medical problems. There are tests that can be used to determine if they are caused by TB. A person, who has one or more of these symptoms, should go to see a doctor.