Coughing up green mucus can be an alarming symptom, especially when it lingers for days or is accompanied by fatigue, congestion, or fever. While many people associate green mucus with bacterial infections, it doesn’t always mean you need antibiotics. The color and texture of your mucus can reveal what’s happening inside your respiratory system, whether it’s a common cold, sinus infection, or something more serious like bronchitis or pneumonia. Understanding what causes ...
