There is a sliding lump on the right side of the neck, which is also known as a nodule, and its painless and itchy may be a lymph node, lipoma, etc. 1. Lymph nodes: most of the sliding lumps on the neck are lymph nodes, which may have had upper respiratory tract infections, or otitis media, oral infections, etc., and cause inflammatory reaction, resulting in localized lymph node enlargement, after the inflammation improves, the lymph nodes form a nodule, whose surface is smooth and can be moved back and forth, and it is painless and itchy. 2. Lipoma: it is also lipoma causing sliding lumps on the neck, which is a benign lesion, and can be followed up temporarily, or can be surgically removed under local anesthesia. It should be noted that this sliding lump may also be caused by tumor metastasis, and it is necessary to determine the benign and malignant nature of the nodule. Therefore, when you find a lump on your neck, it is recommended that you consult a hospital for standardized examination and treatment.