TB, or tuberculosis, is a serious bacterial infection primarily affecting the lungs. A TB cough doesn't have a single defining color. The color of sputum (phlegm) produced during a cough can vary and provides clues, but isn't definitive for diagnosis.
Sputum Color and TB
- Green or Yellow Sputum: A common characteristic of a TB cough is the production of green or yellow sputum, particularly in the mornings. [Reference: Merck Manual, Verywell Health, Hermina Hospitals, Africa Health Organisation] This color indicates the presence of white blood cells fighting the infection.
- Blood-Streaked Sputum: In some cases, the sputum may contain streaks of blood. [Reference: Medical News Today, Verywell Health, Patient.info, CDC, Mayo Clinic] While significant blood loss is rare, the presence of blood warrants immediate medical attention.
- Clear or White Sputum: A normal cough might produce clear or white sputum. [Reference: Hermina Hospitals] This is different from the often colored sputum associated with TB.
It's crucial to understand that sputum color alone cannot diagnose TB. Other symptoms, such as persistent cough (lasting more than 3 weeks), fever, weight loss, night sweats, and chest pain, should also be considered. A proper diagnosis requires medical evaluation, including chest X-rays and sputum tests.
Importance of Medical Evaluation
If you experience a persistent cough with any colored sputum, particularly if it's green, yellow, or blood-streaked, seek immediate medical attention. Early diagnosis and treatment are vital for preventing the spread of TB and ensuring effective treatment.
