The first is the formation of local lipoma, because the neck is easy to fat thickening, fat people are more likely to appear lipoma, which is not too worried, can be appropriate exercise and control diet, lipoma can gradually shrink, if necessary, you can perform surgery to reduce the local swelling. Secondly, sebaceous cyst formation is a disease caused by blockage of hair follicles, and there are many infectious substances like powder slag in the swelling, which needs to be surgically removed by the hospital to improve the relevant examination, otherwise, redness, swelling and ulceration will easily occur in the later stage, and there will be purulent fluid outflow. Thirdly, the swollen lymph nodes are usually caused by bacterial or viral infections, which can be treated by drinking warm water and taking some oral medications for clearing heat, such as Shuang Huang Lian Oral Liquid, etc. However, if the swelling persists and there is even obvious redness and swelling, it is necessary to go to the hospital in time to further improve relevant examinations, such as blood routine and ultrasound, etc. for clarification. In short, if there is a swelling in the neck, you need to go to the hospital in time to clarify the cause.