Cystic echogenicity of the left adnexa indicates that there may be cysts in the left adnexa, such as ovarian cysts, fallopian tube cysts, and possibly ligament cysts or tethered cysts, etc. However, it is necessary to distinguish between physiological cysts and pathological cysts, which should be judged by the actual symptoms. If the cystic echogenic mass is relatively small and no other physical symptoms appear, this condition can be observed regularly after its appearance and is unnecessarily treated. If the cystic mass exceeds 5 cm and is accompanied by abnormal symptoms such as abdominal pain, bleeding and various other problems, it is recommended to go to the hospital for examination and timely removal to avoid other abnormal reactions. If the cyst is physiological in nature, it will disappear slowly with the change of menstrual cycle and no treatment is necessary; if the cyst is pathological in nature, it may also become malignant and needs attention.