There are many conditions that can lead to the growth of pouches behind the ears, and the treatment options are different for different causes, as follows: 1. Swollen lymph nodes behind the ears due to inflammation caused by gingivitis, tonsillitis, upper respiratory tract infection, etc. In this case, the swollen lymph nodes can gradually recover after active treatment of the original disease and anti-infection and symptomatic treatment. 2. Folliculitis and sebaceous cysts behind the ears, and those with mild symptoms can recover on their own after local disinfection and attention to cleanliness and hygiene. If the symptoms are mild, the swollen lymph nodes can recover on their own after local disinfection and attention to cleanliness and hygiene. 3. Swollen lymph nodes behind the ear can also occur in leukemia, lymphoma, or advanced lymphatic metastasis of tumors, and patients usually have painless swollen lymph nodes. Specific treatment should be combined with the actual situation of the patient, active treatment of the primary disease, radiotherapy or targeted drug therapy. Therefore, when there is a mass behind the ear, it is important to pay attention to timely hospital consultation and give targeted treatment after a clear diagnosis to avoid misdiagnosis.