The yellowish and thick nasal mucus of a cold may be caused by the concentration of nasal mucus, or combined with bacterial upper respiratory tract infection, sinusitis and other related complications.
1. Thickening of nasal mucus: Colds are generally caused by viral infections, resulting in runny nose symptoms usually manifested as a clear runny nose phenomenon, but in the later stages of the cold may sometimes be due to the concentration of nasal mucus yellow mucous mucous mucous mucous mucous mucous mucous mucous mucous mucous mucous mucous manifestations.
2. Combined with bacterial upper respiratory tract infection: If there is a combination of bacterial upper respiratory tract infection on the basis of a cold, the phenomenon of yellowish and thick nasal mucus may also occur.
3. Sinusitis: Colds may also be associated with sinusitis, which can lead to yellowish, thick and pus-filled nasal mucus, headaches and other related symptoms.
To summarize, when the nasal mucus is yellow and sticky, you need to actively consult a specialist to evaluate the cause of the disease with specific clinical features.