There are many reasons for the appearance of bumps on the right lower jaw that slide, which may be related to the oral cavity and teeth, such as gingivitis and pulpitis, which can cause reactive hyperplasia of lymph nodes in the corresponding area, resulting in palpable bumps on the lower jaw. In addition, it may be a subcutaneous lipoma or a sebaceous cyst, or it may be caused by a tumor. In this case, an ultrasound of the neck can be done first to determine whether there is a malignant tumor. If it is benign, it can be temporarily observed; if malignancy is suspected, surgery or puncture biopsy can be performed to clarify the pathology and then proceed to the next step of treatment.