Lymphoid follicular hyperplasia is clinically known as posterior pharyngeal wall lymphoid follicular hyperplasia, which can usually be diagnosed in the department of otorhinolaryngology, specifically related to the division of hospital departments. Lymphoid follicular hyperplasia of the posterior pharyngeal wall may be caused by pathogens stimulating the mucosa of the posterior pharyngeal wall or dust stimulating the mucosa of the posterior pharyngeal wall, such as acute upper respiratory tract infections, allergic rhinitis, chronic pharyngitis, etc., which is a kind of protective reaction of the pharyngeal lymphatic tissues to inflammation, and it is generally necessary to go to the otorhinolaryngology department for medical treatment. Patients with lymphoid follicular hyperplasia of the posterior pharyngeal wall should pay attention in daily life, do not eat particularly spicy and stimulating food, exercise more, improve the working and living environment, avoid dust and harmful gas stimulation, so as not to aggravate the lymphoid follicular hyperplasia of the posterior pharyngeal wall. Patients with posterior pharyngeal wall lymphoid follicular hyperplasia should go to the ENT department of the hospital in time and actively cooperate with the doctor for treatment.