The risk of ovarian tumour surgery depends on the nature and stage of the tumour.
In benign clinical tumours, cystic lesions or junctional tumours are more common and can be treated with regular surgery with less risk. However, most patients with malignant ovarian tumours have metastases and are at an advanced stage after the initial consultation, so surgery is difficult to completely remove the tumour and many tiny cancerous lesions may remain, eventually leading to recurrence. Moreover, as some ovarian malignant tumours are more frequent in middle-aged and elderly women, patients may have heart, lung, liver and kidney diseases that cannot tolerate surgery and the surgery is traumatic to the organism resulting in high surgical risks.