Lymphatic pain on both sides of the neck is mainly alert to infections, thyroid diseases, tumors, leukemia and so on. 1. Infection: refers to tonsillitis, lymphadenitis or tuberculosis caused by bacteria or viruses, etc., often manifested as lymphatic pain, which may be accompanied by enlarged lymph nodes, increased pain when pressed, sore throat, fever and malaise. 2. Thyroid diseases: including thyroiditis, thyroid nodules, etc. Typically characterized by goiter, irritability, palpitation and lymphatic pain. 3. Tumor: lymphatic pain caused by lymphoma or other parts of the tumor spreading to the lymph, and at the same time, there are abnormalities such as enlarged lymph nodes, weight loss, and increased body temperature. Lymphatic pain on both sides of the neck may also be caused by lymphatic reactive hyperplasia, leukemia, etc. If the lymphatic pain persists or recurs, you should consult a doctor as soon as possible to prevent delaying the condition.