Positive anti-PL-7 antibody suggests that you may be suffering from anti-synthetase syndrome, polymyositis, dermatomyositis and other diseases, and it is recommended that you consult a rheumatology and immunology department in a timely manner, and under the guidance of the doctor to clarify the cause of the disease and then carry out targeted treatment. Anti-PL-7 antibody, i.e. anti-threonyl tRNA synthetase antibody, is one of the myositis-related antibodies in the autoantibody test, and this synthetase has different degrees of correlation with anti-synthetase syndrome, polymyositis, dermatomyositis, etc. Therefore, it is recommended to consult rheumatology and immunology department in time for patients with positive anti-PL-7 antibody. Under the guidance of the doctor, further improve CRP, blood sedimentation, serum myosin profile, electromyography, muscle MRI, muscle biopsy and other related auxiliary tests. Combined with the results of auxiliary tests and the patient’s clinical manifestations, signs, medical history and other aspects of diagnosis and treatment clues to clarify the patient’s diagnosis can be targeted treatment. Laboratory test results need to be interpreted by a professional physician, and it is recommended that patients with positive anti-PL-7 antibody tests go to the rheumatology and immunology department of a regular hospital for detailed consultation.