Purpose: To examine and characterize extremely negative Yelp reviews of orthopedic sports surgeons in the United States. Methods: A search for reviews was performed using the keywords "Orthopedic Sports Medicine" on Yelp.com for 8 major metropolitan areas. Single-star reviews were isolated for analysis, and individual complaints were then categorized as clinical or nonclinical. The reviews were classified as surgical or nonsurgical. Results: A total of 11,033 reviews were surveyed. Of these, 1,045 (9.5%) were identified as 1-star, and 289 were ultimately included in the study. These reviews encompassed 566 total complaints, 133 (23%) of which were clinical, and 433 (77%) of which were nonclinical in nature. The most common clinical complaints concerned complications (32 complaints; 6%), misdiagnosis (29 complaints; 5%), and uncontrolled pain (21 complaints; 4%). The most common nonclinical complaints concerned physicians' bedside manner (120 complaints; 21%), unprofessional staff (98 complaints; 17%), and finances (78 complaints; 14%). Patients who had undergone surgery wrote 47 reviews that resulted in 114 complaints (20.5% of total complaints), whereas nonsurgical patients were responsible for 242 reviews and a total of 452 complaints (81.3% of total complaints). The difference in the number of complaints by patients after surgery and patients without surgery was statistically significant (P < 0.05) for all categories except for uncontrolled pain, delay in care, bedside manner of midlevel staff, and facilities. Conclusion: Our study of extremely negative Yelp reviews found that 77% of negative complaints were nonclinical in nature. The most common clinical complaints were complications, misdiagnoses and uncontrolled pain. Only 16% of 1-star reviews were from surgical patients. Clinical Relevance: Patients use online review platforms when choosing surgeons. A comprehensive understanding of factors affecting patient satisfaction and dissatisfaction is needed. The results of our study could be used to guide future quality-improvement measures and to assist surgeons in maintaining favorable online reputations.