OBJECTIVE: To retrospectively analyze and explore the value of hip puncture technique use in clinical diagnosis of inflammatory hip diseases and puncture technique. METHODS: 163 cases of inflammatory hip diseases were selected from February 2012 to February 1015, of which 97 cases were male and 66 cases were female, with an average age of 61.7±5.8 years (38-81 years), and the blood sedimentation and CRP were abnormal on admission, including 52 cases of septic arthritis, 39 cases of pain after hip replacement, 26 cases of rheumatoid hip arthritis, 21 cases of tuberculous arthritis There were 13 cases of ischemic necrosis of the femoral head, 10 cases of osteoarthritis with effusion, and 2 cases of ankylosing spondylitis with hip arthritis. After excluding the contraindications, all patients underwent hip aspiration under local or basic anesthesia, and individualized puncture points were established: i.e., the body position of the femoral neck in the joint space was determined with the help of imaging data (femoral neck length) and bony markers on the body surface, and the joint fluid was extracted by puncture at the midpoint of the line between the anterior superior iliac spine and the pubic symphysis, under the inguinal ligament and 2 cm beyond and below the most obvious pulsation of the femoral artery. Routinely send the joint fluid routine, joint fluid bacterial culture, joint fluid antacid stain and joint fluid smear to look for tuberculosis bacteria. The preoperative diagnosis was determined after the laboratory results of the joint fluid were returned, and the corresponding anti-inflammatory treatment was administered for an average of 28.6 days (14-69 days), until the inflammatory indexes had decreased to the standard and then hip arthroplasty or hip revision was performed in the first stage, during which the femoral head was taken for pathology or soft tissue culture of the hip, and the postoperative diagnosis was obtained. The consistency between puncture diagnosis and postoperative diagnosis was compared. RESULTS: In all 163 patients, joint fluid was successfully extracted by puncture in 156 cases, with a puncture success rate of 95.70%. There were 7 cases of unsuccessful puncture, including 3 cases of osteoarthritis (2 cases of strong column), 2 cases of prosthesis loosening after hip replacement, 1 case of rheumatoid arthritis, and 1 case of septic arthritis. In all 156 successful puncture cases, the puncture diagnosis was consistent with the postoperative pathological diagnosis in 151 cases, with an accuracy rate of 96.80%. Conclusion: Hip puncture technique in the diagnosis of inflammatory hip diseases has the advantages of small trauma, high accuracy and easy operation. It is suitable for clarifying the type of inflammation and drug sensitivity of pathogenic bacteria in inflammatory hip diseases to further ensure the therapeutic effect of inflammatory hip diseases. Individualized positioning of the puncture site helps to improve the success rate of puncture.