Stitch scars, which are scar tissue left over from the healing of skin trauma, can be improved in appearance by laser, but generally cannot be completely eliminated. Stitch scar is due to local trauma after clearing and suturing, local skin lesion fibrous tissue proliferation formed by scar healing, is a normal phenomenon of skin injury healing. You can choose laser therapy treatment, commonly used lasers such as intense pulsed light, fractional laser and so on. It can peel off the scar tissue, promote collagen fiber regeneration and rearrangement, and improve the appearance of the scar. However, the improvement effect of laser therapy is limited, and it usually requires multiple treatments to show significant results. For obvious proliferation of scarring can also be improved through local injection of drugs, surgery and other ways. For patients with post-stitch scars, they should go to a regular hospital and choose the appropriate treatment under the guidance of a specialist.