A sliding lump on the right side of the neck is often associated with the following conditions: first, enlarged lymph nodes, most commonly reactive lymph node hyperplasia due to inflammation in the cervical pharynx. If there are no clinical symptoms, regular review of the ultrasound is sufficient. If there are signs of inflammation such as redness, swelling, heat and pain, treatment with anti-inflammatory drugs may be necessary. In addition, if there are systemic symptoms such as wasting and weakness, it is necessary to consider the possibility of lymphatic tuberculosis or lymphoma. The second, sebaceous cyst or lipoma, which also usually has no obvious clinical symptoms, is a benign disease. It is recommended to go to the hospital for ultrasound examination to clarify the diagnosis, and usually surgery needs to be considered. In the third case, consider whether the sliding bumps on the right side of the neck are due to a goiter.