Causes of Green Phlegm in Children’s Cough
Disease description:
This morning, while brushing teeth with my child, I noticed his phlegm was green, and he has been coughing frequently. What are the possible causes of green phlegm in children with cough?
Doctor's answer (1)
Dr. Xie Zixing
The primary causes of green phlegm in children’s cough include the following:
1. A relatively weakened immune system, leading to infection of the pharyngeal tissues by external microorganisms such as bacteria or fungi.
2. Infection by viruses or other microorganisms, triggering viral upper respiratory infection (common cold).
3. Nasal conditions—such as sinusitis or rhinitis—may also contribute to this phenomenon.
