Mucus in the palate as well as nasopharynx can be caused by diseases such as nasopharyngitis, rhinitis and sinusitis. 1. If you suffer from diseases such as nasopharyngitis, it may cause swelling in the nasopharyngeal area, congestion as well as mucous secretions, and mucus may appear in the nasopharynx. 2. If you suffer from rhinitis and other diseases, it may cause mucopurulent secretion in the nasal cavity, if the secretion drips backward along the nasal cavity, flows into the throat area, and adheres to the epiglottis, it will cause the above symptoms, it is recommended to go to the hospital in time for diagnosis, to find out the cause of the disease, and cooperate with the doctor actively to take treatment. 3. If you suffer from sinusitis and other diseases, the nasal sinus mucosa is swollen and congested, and the sinus secretions are discharged into the nasal cavity and flow back into the nasopharynx, thus causing the above symptoms. The mucus in the palate and nasopharynx should go to the hospital in time for diagnosis and treatment.