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Tuberculosis (TB) is a serious infection caused by bacteria. It usually occurs in the lungs, but it can spread to other parts of the body. TB spreads to other people through the air. When someone with TB breathes out or coughs, the bacteria can be breathed in by people who are nearby. You should not go to work or school while you can infect other people.
Symptoms of TB include a cough and a fever. You may feel tired and weak. And you may not feel like eating.
Treatment involves taking antibiotic medicines. It's very important to take your medicines as your doctor tells you to. It takes a long time to kill the TB bacteria. Treatment can last 4 to 9 months or longer. During your treatment you'll see your doctor for tests to see how the medicines are working. Your doctor will help guide you through this long process.
You may have directly observed therapy (DOT). DOT ensures that you'll take the needed medicine on schedule. That's the best way to ensure you will be cured of TB. A public health official may be involved with your care.
You will start to feel better after taking your medicine for a few weeks. And you may not be able to infect others at this point. But don't go back to work or school until your doctor tells you it's okay.
If you live with other people, ask them to be tested for TB. A positive tuberculin skin test means that the person needs treatment to prevent TB.
Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments, and call your doctor or nurse advice line (811 in most provinces and territories) if you are having problems. It's also a good idea to know your test results and keep a list of the medicines you take.
Call 911 anytime you think you may need emergency care. For example, call if:
Call your doctor or nurse advice line now or seek immediate medical care if:
Watch closely for changes in your health, and be sure to contact your doctor or nurse advice line if:
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Current as of: February 9, 2022
Author: Healthwise Staff
Medical Review:Adam Husney MD - Family Medicine & E. Gregory Thompson MD - Internal Medicine & W. David Colby IV MSc, MD, FRCPC - Infectious Disease
Care instructions adapted under license by your healthcare professional. If you have questions about a medical condition or this instruction, always ask your healthcare professional. Healthwise, Incorporated disclaims any warranty or liability for your use of this information.
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