A cosmetic plastic surgeon will have several qualifications. After MBBS, the person will take a master's in surgery. This would be followed by a series of advanced training courses, making the doctor eligible to work on cosmetic surgeries. Experience is also a significant factor in performing such invasive procedures. https://mooc.elte.hu/eportfolios/1248938/Home/Finding_A_Good_Plastic_cosmetic_surgery_Clinic