Locally anesthetize the nasolabial groove rich in hyaluronic acid, then insert a small needle knife to peel off and cut off the fibrous ligament connected with the deep part, and apply a little compression. Suck out a proper amount of subcutaneous fat of abdomen or thigh with syringe liposuction for later use; According to the depth of nasolabial groove, appropriate amount of fat was injected into nasolabial groove through the original needle eye.

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