Red bumps the size of pea grains on the posterior wall of the pharynx may be caused by papilloma, follicular hyperplasia, pharyngeal herpes and other diseases, which can be treated conservatively or surgically depending on the cause of the disease. In the short term, attention should also be paid to diet, and light, soft and easy-to-digest food should be chosen to avoid improper diet that may repeatedly stimulate the posterior pharyngeal wall. 1. Papilloma: It is a kind of benign tumor in the throat area. If the tumor is small, it can be treated without special treatment. If the tumor is large, it can have foreign body sensation in the pharynx, so it can be removed by surgery, and then pathological biopsy can be performed after surgery to make a clear diagnosis. 2. Follicular hyperplasia: mostly developed from chronic pharyngitis, after stimulated by inflammation, it will lead to congestion and edema of throat wall, thus forming follicular hyperplasia. For this disease, it is necessary to gargle with local compound borax solution; iodine tablets and silver and yellow tablets can be contained, 10% silver nitrate solution can be used to cauterize the hypertrophied lymphoid follicles; can also be taken to freezing, laser, plasma treatment. 3. Pharyngeal herpes: usually associated with viral infection, usually occurring in spring or fall. Oral ribavirin should be taken as prescribed by the doctor, and ribavirin spray can be used locally. If you find red bumps of bean size on the back wall of the pharynx, it is recommended to consult the hospital for a clear diagnosis and treatment.