Feeling soybean-sized lymph nodes on the neck is an abnormal phenomenon, which may be caused by inflammation of the organism or tumors and other diseases. Under normal circumstances, all lymph nodes cannot be felt on the body surface. When a patient feels soybean-sized lymph nodes on the neck, it means that the lymph nodes here have become enlarged. The two main causes of enlarged lymph nodes on the body surface are inflammatory infections and tumors. Lymph node enlargement caused by inflammatory infection is soft, smooth surface, good mobility and tenderness; while lymph node enlargement caused by lymphoma or lymphatic metastasis of malignant tumors is hard, not smooth surface, poor mobility and no tenderness. If you find soybean-sized lymph nodes on your neck, you should consult a doctor in time, complete the examination, and follow the doctor’s instructions to treat them accordingly after a clear diagnosis.