Although opinion differs among surgeons, preferred treatment of synovial chondromatosis is surgical: either open or arthroscopic removal of loose bodies with or without synovectomy. This report describes a case of primary synovial chondromatosis of the hip following failed hip arthroscopy in a young patient. Incorrect arthroscopic portals, inadequate removal of loose bodies and iatrogenic osteochondral injury of the hip were the failure surgical causes of primary synovial chondromatosis. Following revision hip arthroscopy, and complete removal of multiple loose bodies with partial synovectomy, the patient has achieved pain-free range of hip motion at 2-year follow-up and has returned to previous athletic activity. Hip arthroscopy is a minimally invasive procedure and can produce excellent outcomes for patients with synovial chondromatosis. A small wound and early ambulation are the principal advantages of hip arthroscopy. However, hip arthroscopy uses a small operative field and is technically demanding. Based on this experience, we recommend that hip arthroscopy for synovial chondromatosis requires an experienced surgeon to prevent iatrogenic injury and malpractice suits.