There are many small white dots under the lower lip, and this condition, if it occurs for a longer period of time and is formed gradually, and there is no obvious conscious itching or painful symptoms, may be the formation of sebaceous ectopic disorder in this area, which has no clear health risk to the human body, however, the specific mechanism of occurrence is not very clear. Of course, the small white dots may also be the result of the patient’s original lip infection, especially chronic lip infection formed by local mucosal tissue necrosis, or mucosal tissue ulceration, etc. If it occurs repeatedly, there may be small white dots, and this time the patient may have certain conscious symptoms, such as possible dry and cracked lips or certain itching or pain and other symptoms are possible, so it is also necessary to Certain identification is performed.