MRI can be used for gynecological examinations because it has a high resolution of soft tissues, but it is not suitable for all gynecological diseases. MRI is mainly suitable for occupational lesions of the uterus, such as uterine fibroids, cervical cancer, endometrial cancer and occupational lesions of the ovaries. It can accurately determine the number, location, size, internal structure, and relationship with surrounding organ tissues of the lesions, and also helps determine the depth and extent of lesion infiltration, which helps clinical staging and also helps clinicians to develop treatment plans for surgery. However, MRI is not suitable for inflammatory diseases of the pelvis and adnexa, pelvic effusion and examination of the birth control ring, etc. At this time, it is necessary to rely on internal gynecological examination and ultrasonography for comprehensive judgment.