Nasal congestion yellow sticky nasal mucus, consider acute upper respiratory tract infection, acute sinusitis, nasal foreign body and other diseases and cause. 1. Acute upper respiratory tract infection: acute inflammation of the mucous membrane of the respiratory tract in the nasal cavity and pharynx, most of which are caused by viral infections, and a small number of which are caused by bacterial infections. It can lead to yellow sticky nasal mucus, nasal congestion, sneezing, coughing, sore throat and other uncomfortable symptoms. 2. Acute sinusitis: mostly secondary to acute rhinitis, its pathological changes are mainly acute catarrhal inflammation or purulent inflammation of the sinus mucosa, and severe patients can involve bone and surrounding tissues and neighboring organs, which can lead to serious complications. It can lead to nasal congestion, purulent nasal discharge, headache and other uncomfortable symptoms. 3. Nasal foreign body cavity foreign body irritation is an acute inflammatory disease of the nasal mucosa, resulting in nasal congestion, nasal bleeding, purulent nasal discharge and loss of smell and other uncomfortable symptoms. There are many causes of nasal congestion and yellow sticky nasal mucus, so it is best to go to the hospital in time to get a clear diagnosis.