Yellow runny nose, such as the consideration of infectious diseases, often caused by rhinitis and sinusitis secondary bacterial infection, but only through a single symptom can not determine the specific cause of the disease, patients also need to go to the hospital to do a comprehensive examination.
Symptoms of runny nose patients first need to go to the hospital to do routine blood tests, if the cause of purely viral colds, often clear water-like mucus is more common.
And secondary bacterial infection, nasal cavity, sinus mucosa will secrete viscous, thick material, mixed due to the fight against inflammation and gathered necrotic leukocytes and bacterial metabolites, so there will be a yellow runny nose.
The appearance of a runny nose, you need to cooperate with the doctor in time for standardized diagnosis and treatment.