Science

Why is my sputum dark in color?

December 16, 2025 · caitlin

Dark-colored sputum can be alarming, but it often provides important clues about your health. Typically, sputum changes color due to infections, allergies, or environmental…

What causes black sputum?

December 16, 2025 · caitlin

Black sputum can be alarming, and it’s important to understand its potential causes. This condition may result from various factors, including the inhalation of…

What does brown sputum mean?

December 16, 2025 · caitlin

Brown sputum can be a sign of various health conditions, ranging from minor to serious. It often indicates the presence of old blood, which…

What does green sputum indicate?

December 16, 2025 · caitlin

Green sputum often indicates a respiratory infection, such as a bacterial or viral infection, where the body’s immune response produces an excess of mucus.…