New biological growths in the Eustachian tube may be adenoid tissue, nasopharyngeal carcinoma, nasopharyngeal fibroangioma, lymphoma and so on. 1. Adenoid tissue: adenoid tissue is located in nasopharynx, which often occurs in children, gradually shrinks after puberty, and basically disappears after adulthood, and a few young people may have the residual adenoid, and the stimulation of peripheral or self-inflammation may lead to pathological hyperplasia of adenoid. 2. Nasopharyngeal cancer: Nasopharyngeal cancer often occurs in unilateral pharyngeal crypt, which is often manifested as blood in snot, unilateral submandibular lymph node metastasis and unilateral recurrent otitis media. 3. Nasopharyngeal fibrous hemangioma: this disease can develop to the nasopharynx, and when it invades the Eustachian tube, it can be manifested as new organisms attached to the surface of Eustachian tube, which can cause repeated nose bleeding, progressive nasal obstruction and other manifestations, and it can also lead to earache, tinnitus and hearing loss due to the compression of Eustachian tube by the tumor at the mouth of Eustachian tube. 4. Lymphoma: localized diffuse lymphatic hyperplasia may appear, which may be manifested as the growth of new organisms in the Eustachian tube. The growth of new organisms in the Eustachian tube requires further examination, clear diagnosis and standardized treatment under the guidance of specialists.