“…This study retrospectively analysed the clinical data of 335 patients with surgical site infection (SSI) after percutaneous endoscopic lumbar discectomy (PELD) and concluded that high BMI, diabetes, long‐term use of corticosteroid, long operation time and cerebrospinal fluid leakage were independent risk factors for SSI. 1 We are very grateful for the author’s contribution in this field, but there are still some problems in this study that need to be further explored.…”