Pelvic cystic mass 7cm if not surgical treatment, easy to rupture or torsion, causing bleeding or acute abdomen, may also occur malignant changes. Pelvic cystic mass diameter greater than 5cm should be early surgical treatment, if the diameter of the mass reaches 7cm without surgery, it is easy to oppression of the surrounding tissues and organs, causing abdominal pain, lumbar and knee pain and weakness and other symptoms; if in the bending or strenuous activities, may also lead to rupture of the mass bleeding. Therefore, it is recommended that pelvic cystic mass with a diameter of 7cm should be operated laparoscopically under the doctor’s advice in a timely manner, and pathological examination should also be carried out after the operation. If the mass is malignant, it should be treated with radiotherapy to prevent tumor spread or metastasis. The presence of cystic masses in the pelvic cavity requires active consultation and reasonable treatment in accordance with the doctor’s instructions.