الفهرس 
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Abstract
Background: Fractional photothermolysis is creation of microscopicthermal zones of controlled depth, width and density. Microneedling is asimple treatment modality to reduce striaedistensae. Objective: Evaluate and compare the efficacy of fractional carbondioxide laser and microneedling as a treatment of striaedistensae.Methods: Individuals with striaedistensae received 3 split-bodytreatments at 4-week intervals. The right side of the body was treatedwith fractional CO2 laser; while the other side with microneedling. Assessment was done by comparing photographs before and aftertreatments by two blinded physicians using a quartile grading scale.Evaluation also included patient satisfaction score and histopathologicalexamination. Results: Thirty-three subjects were enrolled and 30 completed the study. By quartile grading score, we recorded 55٪ moderate-excellentimprovement of striae in the dermaroller-treated side but with fractional CO2 laser-treated side, we recorded 76٪ of patients had moderateexcellent improvement. Patients were more satisfied with fractional CO2laser than the microneedling. Post-inflammatory hyperpigmentation, as acomplication of fractional CO2 laser, appeared in 11 patients. Conclusion: Fractional CO2 laser is more effective than microneedling. More side effects are seen with fractional laser as post inflammatoryhyperpigmentation, but still microneedling can be afforded as aneffective, safe and cheap method.