Although most patients have successful outcomes after hip arthroscopy, a minority of patients experience complications that may impact their recovery and long-term benefit. As most of these complications can be minimized by appropriate surgical technique, many tips have been recommended. Additionally, the reasons behind clinical failure postoperatively have been scrutinized, which include, most commonly, incomplete correction of osseous pathomorphology, underappreciated preexisting hip osteoarthritis, and/or an incorrect preoperative diagnosis. Meticulous preoperative planning, evaluation of advanced imaging studies, and proper patient selection will help to reduce the number of postoperative failures and increase the chance of a successful outcome following hip arthroscopy.