Why is the tear trough always blue after filling with needles?

The lacrimal groove is a groove from the inner corner of the eye to the lower eyelid on the nasal side, which is caused by the atrophy and sagging of the soft tissue at the lower edge of the orbital septum. Some people have tear troughs that even extend to the cheeks. The contrast of the depression of the tear groove against the surrounding skin will make the lower eyelid tissue look bloated and protruding, and it is easy to be mistaken for an eye bag, but in fact it is just an illusion caused by the deepening of the tear groove. If you look at it from the side, you can clearly see the difference between eye bags and tear grooves, because eye bags are bulging, while tear grooves are only concave. Collagen injection to remove the tear trough, the face is first cleaned and disinfected, and then the doctor will insert a needle under the tear trough. At the same time as the injection, the doctor will massage the tear trough area to distribute the collagen evenly and fill the tear trough. The effect of collagen injection to remove the tear trough is immediate. After the injection, you can clearly see that the tear trough becomes smooth and flat, which greatly improves the face.

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