The drooping corners of your mouth not only make you look older, but also always make people feel sad, which naturally gives people a bad impression. This defect can be improved by drooping corners of the mouth. Let's take a look at the specific surgical principle. Generally speaking, the contraction force of the labia depressa muscle is too strong, or the skin is slack, and the soft tissue support of the corners of the mouth is insufficient, resulting in drooping corners of the mouth. If you are young and have the habit of applying lipstick, you can use a lip liner to change the outline of the upper and lower lips, so that the lipstick in the middle of the lips is slightly lighter and the overall look and feel is improved. Otherwise, you can also inject botulinum toxin to reduce muscle strength and improve mouth droop. If you are older, there may be a problem of insufficient soft tissue in the lip angle. At this time, it is necessary to supplement hyaluronic acid to strengthen the strength of the lip angle. Of course, if the skin is too loose and it is difficult to improve simply by injection, a small area of facial lift may be needed. In fact, there are various aspects to a problem. Of course, there are different ways to solve the drooping corners of the mouth.