Plastic surgery as the name says is a surgical interventions, the main area ​​manipulation is superficial layers of skin and tissue. Surgical correction, as a rule, does not affect vital anatomical structures.
Of course there are certain operational risks for the patient, but these are usually more dependent on the general condition of the patient and the presence of decompensated chronic diseases.
Provided that the operation is performed by experienced, certified doctor and the patient carefully observes all postoperative recommendations of the specialist - the risks of complications are minimal.