Small bubbles in the throat refers to lymphoid follicle hyperplasia in the posterior wall of the pharynx, which often occurs in chronic pharyngitis, reflux pharyngitis, postnasal drip syndrome, etc. 1. Chronic pharyngitis: under normal circumstances, lymphoid follicles are not obvious, but if chronic pharyngitis occurs, due to chronic inflammatory stimulation, it is easy to cause lymphoid follicles, hyperplasia fusion into a sheet, resulting in the production of small bubbles, which may be accompanied by discomfort in swallowing, pharyngeal foreign body sensation, pharyngeal itching, coughing and other symptoms. 2. Reflux pharyngitis: If long-term gastroesophageal reflux, the pharynx causes some stimulation, which can easily lead to lymphoid follicle hyperplasia, manifested as small bubbles. 3. Postnasal drip syndrome: can be viral, bacterial infection caused by an upper respiratory tract diseases, can lead to nasal cavity, viral mucosal inflammatory reaction after the increase in secretions, backflow into the throat, inflammatory factors stimulate the posterior wall of the pharynx lymphoid follicle hyperplasia, the pharyngeal area has a large number of small bubbles. Small bubbles in the throat, if accompanied by significant discomfort, it is recommended to actively seek medical attention in the hospital to identify the cause, targeted treatment or treatment.