Plasma Therapy for Scar Management

Inclusion Criteria: * Clinical diagnosis of scar requiring therapeutic intervention, including but not limited to hypertrophic scar, keloid, atrophic scar, postoperative linear scar, burn scar, post-traumatic scar, or post-acne scar. * Scar duration ≥ 3 months, in stable or proliferative phase. * Age ≥ 12 years (for minors under 18 years, informed consent must be provided by a parent or legal guardian). * Stable vital signs and able to tolerate scar treatment. * Understand and willing to participate and able to provide signed informed consent. Exclusion Criteria: * Active infection, ulceration, or malignant tumor involving the scar area. Severe uncontrolled systemic disease or major organ dysfunction (heart, lung, brain, etc.). * Psychiatric disorder that prevents compliance with treatment. * Presence of diseases (malignant tumor, autoimmune disease) or use of medications (high-dose corticosteroids: ≥40 mg prednisone or equivalent per day for ≥2 weeks) that may affect scar healing or assessment. * HIV positivity, clinical diagnosis of AIDS, or absolute neutrophil count (ANC) \< 1000 cells/mm³ during screening. * Pregnancy or breastfeeding. * Previous treatment of the scar area (e.g., laser, injection, surgery) without a washout period of ≥3 months.