Children with long bubbles in the throat may be herpetic pharyngitis, lymphoid follicular hyperplasia and so on. 1. Herpetic pharyngitis: it is caused by coxsackie virus group A, manifested by high fever, sore throat, salivation (drooling), anorexia, etc., pharyngeal red congestion, in the pharyngeal palatal arches, soft palate, palatal pituitary mucous membrane can be seen more than 2~4mm size grayish-white herpes, surrounded by a red halo, 1~2 days after the rupture of the formation of small ulcers, it is a kind of acute infectious disease. 2. Lymphoid follicular hyperplasia: When the child’s throat is often stimulated by acute or chronic inflammation, it can lead to hyperplasia of the posterior pharyngeal wall, the root of the tongue at the submucosa of small lymphoid tissue. Children’s throat long bubble may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.