The sutures from the surgical incision are left behind after the surgical removal of the rich bag. If you are not a keloid, the scar is not noticeable.
Fuchsia is a fatty growth on the back of the neck that can be treated by surgical excision. Surgical excision will inevitably result in a surgical incision, which will leave a stitch, but because it is a transverse incision on the back of the neck, it will not cause a particularly noticeable scar after complete healing.
If you feel that your scar is too heavy, you can visit a dermatologist, who will be able to choose different treatments to minimize scarring. In cases of keloid scarring, the scars left behind may be more noticeable, which is almost inevitable.