Nasal congestion with yellow sticky nasal mucus is mostly caused by acute rhinitis secondary bacterial infection, sinusitis, nasal foreign body and other factors. 1. Acute rhinitis secondary bacterial infection: the cause of this disease is mainly infection, especially viral infection, or bacterial infection secondary to viral infection, patients with acute rhinitis usually appear burning in the nose, itchy nose, nasal congestion, nasal discharge, and other symptoms, if the secondary bacterial infection, the nasal mucus can be yellow mucous mucous mucous mucous mucous mucous mucous mucous mucous mucous mucous mucous mucous mucous mucous mucous mucous mucous. 2. Sinusitis: related to respiratory tract infection, respiratory allergic reaction, patients with sinusitis usually have nasal congestion, yellow pus flow, olfactory disorders, headache and other symptoms, acute attack may have fever, cough and other systemic symptoms. 3. Nasal foreign body: Nasal foreign body often leads to unilateral nasal congestion, yellow mucous nasal discharge, and even the phenomenon of odor. In addition, nasal malignant tumors can also cause nasal congestion, yellow mucous nasal discharge, it is recommended that patients go to the hospital in time, after a clear diagnosis and treatment.