A fleshy lump behind the ear is clinically common in the following three common diseases: 1. Local lymph nodes, usually seen in otorhinolaryngology or upper respiratory tract infection secondary to bacterial or viral infection, lymphadenitis behind the ear can usually be relieved or even disappear after treatment of the primary disease, such as otorhinolaryngology, upper respiratory tract or oral gingivitis infection; 2. 3. Localized lipomas, which are mainly soft in texture, with clear borders and good mobility, require further ultrasound examination; lipomas can be left untreated when there are no obvious symptoms; if there are symptoms of local swelling and discomfort, they usually need to be completely removed under local anesthesia in order to In case of local swelling and discomfort, complete excision under local anesthesia is usually required to achieve the purpose of cure.