The symptoms of clear nasal mucus and yellow sputum are commonly seen as follows:1. Preliminary consideration of acute upper respiratory infections, but does not exclude the possibility of other conditions such as rhinitis. Because the main symptoms of upper respiratory tract infection for the flow of watery nasal discharge, nasal congestion, sneezing, etc., some patients may also be accompanied by fever and headache, cough phlegm, sore throat and other adverse symptoms. 2, and rhinitis type of disease, such as sinusitis, chronic rhinitis, allergic rhinitis, etc., these types of disease will be the nasal mucus present watery, airway secretion increased symptoms, but patients with rhinitis may also be accompanied by nasal itching, sneezing frequently and other reactions. accompanied by nasal itching, sneezing frequently and other reactions. It is recommended to go to the regular hospital to receive further detailed examination, such as routine blood test, anterior rhinoscopy, pathogenetic examination, etc., to confirm the diagnosis of the specific cause of the disease, and then carry out targeted treatment.