A small bag in the right lymph node may be caused by reactive hyperplastic lymph nodes, malignant tumors, thyroid nodules, sebaceous cysts, lymphomas and so on. 1. Reactive hyperplastic lymph node: the lump can be moved, the boundary is clear, and there is no pain. 2. Malignant tumor: For example, if malignant tumor occurs in the thyroid gland, the patient will also find that there is a swelling or mass in the front of the neck, which is accompanied by pain, and the patient will also have nerve compression, which will cause the phenomenon of abnormal numbness of local sensation. 3. Thyroid nodule: the nodule usually appears in front of the right side of the neck, and the nodule can move up and down with swallowing. 4. Sebaceous cysts: commonly known as acne, can also be expressed as pimples, the tumor is protruding outside the skin. 5. Lymphoma: If the patient suffers from lymphoma, there are often multiple enlarged lymph nodes, or fusion of multiple lymph nodes, in the peripheral armpits of the neck, in the groin area. There are other things that may cause a small bag in the right lymph node, it is recommended to go to the hospital in time for examination, to clarify the cause of the targeted treatment, so as not to delay the condition and cause adverse consequences.