Acne scars, i.e. acne scarring, arise from an imbalance between collagen synthesis and degradation after the inflammation of acne subsides. It can be eliminated by fruit acid treatment, laser treatment and surgery. 1. Fruit acid treatment: Fruit acid can stimulate dermal collagen synthesis and accelerate epidermal cell renewal, mainly for superficial acne scars. 2. Laser treatment: The exfoliative nature of fractional laser is used to treat the skin and stimulate collagen production to achieve the purpose of repair. 3. Surgery: If there is a huge scar that is very obvious, surgery can be given. If the phenomenon of acne scars appears, it is recommended to consult a doctor in time and follow the doctor’s instructions.