First, let’s take a look at what a “tear trough” looks like: see that groove? All we need to do is fill in that depression to remove the tear trough. However, filling tear troughs may seem simple, but it actually requires a lot of injection skills and experience, both for deep filling and superficial touch-ups. Today, we will introduce several issues that should be noted when filling the tear trough. First, do not remember not to inject these places 1, “tear duct opening” is forbidden, must not be touched. There are large blood vessels, regardless of the depth of the injection, if there is bruising and hematoma, will last six months. Think of all the horror, then how to see people … 2. Avoid injecting into the orbit and orbicularis oculi. Because the rotation of the eye will drive the movement of the fat at the bottom of the orbital septum, it is easy to form pseudo-eye bags. Second, fill the tear trough, rather deep than shallow, rather less than more Why is this? First, if not played against the periosteum, it is easy to be moved by the orbital fat, and when it hits the orbital fat, it will expand a lot, causing pseudo-eye bags. Second, if the injection is too much, redness and swelling will easily occur, and fat filling will easily form hard knots. Third, shallow and flat laying up, although the early effect is very good, but it is easy to have problems. If you must inject shallow, you can only inject a very small amount and massage evenly. 1, there is melanin in the superficial layer of the skin, and if the injection is too shallow, it will make melanin active and pigmentation will occur. 2, when injected, it is easy to hit the orbicularis oculi muscle, forming fiber wrapping, fiber wrapping and no blood flow, easy to gather into a mass. Suggestion: To fill the tear trough, inject to the deep layer and inject to the periosteum. Third, push injection slowly and shape while pushing injection We must be slow when pushing injection, and need to push the drug while shaping. Because the skin of the tear trough is thin, so that the filler can be evenly spread on the depression of the tear trough to achieve the best effect. Four, pre-operative ice and post-operative pressure is very important tear trough is rich in blood vessels, it is easy to bruise, pre-operative ice so that capillary constriction, can be a good prevention of bleeding. At the same time, you should press immediately after the injection, even if there is no bleeding, to prevent bruising a few days after the injection.