It is necessary to improve the examination, clarify the cause of the swollen lymph nodes, and treat the cause in order to make the lymph nodes disappear quickly. Swollen lymph nodes are very common and there are many diseases that cause this symptom. If it is lymphadenitis, timely anti-inflammatory treatment, such as oral antibiotics and so on, is necessary, and the swollen lymph nodes can subside after the inflammation is relieved. If malignant tumor occurs, tumor cells may metastasize to the lymph nodes, resulting in swollen lymph nodes, requiring radical tumor surgery, radiotherapy, chemotherapy, etc. In case of hematological diseases, such as lymphoma, the lymph nodes may also be enlarged and require treatment such as bone marrow transplantation, radiotherapy, chemotherapy, etc. Patients need to be seen in a timely manner, and routine blood tests and ultrasound examinations should be completed. If the condition requires, a lymph node biopsy can be done to be able to clarify the cause and then the best treatment can be chosen.