Generally speaking, enlarged lymph nodes without pain is not normal, which can be considered to be related to malignant tumor, lymph node tuberculosis, lymphoma and other diseases. 1. Malignant tumors: malignant tumors such as thyroid cancer often lead to lymph node enlargement through lymphatic metastasis, and these enlarged lymph nodes tend to have no pain, hard texture and poor mobility. 2. Lymph node tuberculosis: lymph node tuberculosis will lead to lymph node enlargement, pain is often not obvious, accompanied by low fever, night sweats and other symptoms of tuberculosis poisoning, commonly found in the neck, armpit or groin and other areas of enlarged lymph nodes, due to the condition at the beginning, no pain. As the disease develops deeply, pain symptoms will appear slowly. 3. Lymphoma: Lymph node enlargement without pain is also considered to be caused by lymphoma, which will appear painless lymph node enlargement symptoms, accompanied by fever and other symptoms. If you find that you have painless swollen lymph nodes, you should consult the doctor in time, improve the examination, and follow the doctor’s instruction to treat it after clear diagnosis.