Scope of application of ultrasound intervention ultrasound intervention has the advantages of small trauma, no need for incision, no scars on the body surface, no hospitalization, and does not affect work life, etc. Its scope of application is as follows 2.Liver: suitable for the treatment of liver cyst, polycystic liver, liver abscess, hepatic hemangioma and liver cancer. 3.Renal: suitable for the treatment of renal cysts, polycystic kidney with larger cystic cavity. 4.Appropriate for the treatment of abdominal cysts and pelvic cysts or abscesses 5.Thyroid: suitable for the treatment of thyroid cysts, hemorrhagic goiter of about 3cm, nodular goiter, thyroid adenoma, etc. 6.Mammary gland: suitable for the treatment of breast cysts, breast enlargement nodules under 3cm, breast fibroadenoma, and intraductal papilloma of the breast. 7.Gynecology: suitable for the treatment of adnexal cysts, ovarian crown cysts, ovarian chocolate cysts, pelvic encapsulated effusion, tubal effusion without fertility requirements, pelvic abscesses, etc. 8.Malignant tumor: suitable for the treatment of liver cancer, metastatic lymph nodes, peripheral lung cancer and body surface tumor. 9.Effusion: It is suitable for ultrasound-guided aspiration treatment of effusion in various parts of the body such as pleural effusion, pericardial effusion, joint cavity effusion, etc. The risk is greatly reduced compared with that of blind aspiration. 10.Ultrasound-guided sclerotherapy of saphenous varicose veins. 11. Clinically required placement of drainage. 11. Ablation of prostatic hyperplasia