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When Should You Get Tested for Tuberculosis (TB)?

tb

A cough lasting three weeks or longer, especially with fever, night sweats or unexplained weight loss, may be a sign of tuberculosis (TB). Consult a doctor for an assessment and TB testing.

Tuberculosis (TB) is a serious infection that usually affects the lungs. It can cause a cough lasting 3 weeks or longer, cest pain, and coughing up blood or sputum. Other symptoms include fatigue, weight loss, loss of appetite, chills, fever, and night sweats.

Know the symptoms of tb

Tuberculosis is treatable, but recognizing its warning signs early is essential for timely testing and care. If you have a persistent cough or symptoms such as fever, night sweats, weight loss, or chest pain, consult a healthcare provider promptly.

Video Summary: Warning Signs of Tuberculosis (TB)

Prefer reading? Here are the key points covered in the video.

When should you suspect tuberculosis (TB)?

A cough lasting three weeks or longer, especially with fever, night sweats, chest pain or weight loss, may be a warning sign of tuberculosis (TB). Consult a doctor to discuss testing.

What are the common symptoms of tuberculosis (TB)?

Tuberculosis often affects the lungs and can cause a persistent cough, chest pain or coughing up blood. Other symptoms include fever, night sweats, fatigue, weight loss and loss of appetite.

What should you do if you have tuberculosis symptoms?

If you have a persistent cough or other possible tuberculosis symptoms, visit a doctor for an assessment and advice about TB testing.

Disclaimer:
The information provided in this blog is to help you understand about cough, cold, and allergy a little better — it's not a substitute for seeing a doctor. Every person is different, so please check with a healthcare professional for advice specific to you or your child, especially before starting any medication or if symptoms last more than a few days. If you're ever worried, don't wait — reach out to your doctor.

References:

  1. CDC. Signs and symptoms of tuberculosis. [Internet] 2025 [Cited 2026 July 2]. Available from: Signs and Symptoms of Tuberculosis.