Most complications associated with hair transplant surgery are usually preventable and most often arise as a consequence of poor planning or faulty surgical technique. Patients should be evaluated for having realistic goals and a pattern that is amenable to aesthetic restoration. A good treatment plan must consider the potential for future hair loss. Well-informed patients who carefully follow instructions and take an active role in the postoperative recovery process minimize the chance of patient-controlled complications. This article discusses potential complications associated with hair restoration surgery, and the roles of the patient and physician in decreasing the risk of complications.