A child with a lump on the neck that slides can generally be referred to general surgery or pediatrics. The lymph nodes in the neck, jaw, behind the occiput, and behind the ear are all lymph nodes in children, which are not easily touched under normal circumstances, but in several cases they can form hyperplasia. Generally speaking, when there is poor health, local inflammation, such as a cold, respiratory infection, or even inflammatory conditions such as tooth decay or tooth replacement, resulting in a systemic inflammatory reaction, lymph node enlargement in the neck will occur, and it will be felt like a small lump that slides. When multiple lymph nodes are enlarged or even a single lymph node is enlarged with bead-like changes, you should be alerted and can have an ultrasound examination to see if the structure of the lymph nodes is normal, or you can determine the nature of the lymph nodes by acupuncture cytology or by removing them and sending them for pathology.