Risk of malignancy for endometrial polyp no bleeding? Advise excision?

The risk of malignancy in an endometrial polyp in a patient without bleeding is generally low but not negligible. Overall, the prevalence of malignancy within endometrial polyps ranges from approximately 1% to 3% in unselected populations, with an increased risk observed in postmenopausal women and those with recognized risk factors such as advanced age, obesity, hypertension, tamoxifen use, and postmenopausal status NICE NG12 Uglietti et al. 2019. Specifically, in postmenopausal women without bleeding and no hormonal exposure—as exemplified by recent case series of giant endometrial polyps—histopathological examination has predominantly confirmed benign pathology, with malignancy being rare or absent Wang et al. 2026.

Regarding the recommendation for excision, endometrial polyps should be excised even in asymptomatic patients, including those without bleeding, to allow definitive histopathological assessment and to exclude malignancy. Diagnostic hysteroscopy with complete polypectomy remains the gold standard approach, offering direct visualization and complete removal of the lesion with minimal morbidity compared with more radical surgery, and is preferred over blind biopsy or dilation and curettage due to higher diagnostic accuracy NICE NG12 Wang et al. 2026 Uglietti et al. 2019Wang et al. 2026. This strategy is particularly advised for larger or giant polyps, given their potential association with malignancy being higher than in small polyps (although still low), and for polyps in patients with clinical risk factors.

In asymptomatic patients with small polyps (<10 mm) and no bleeding, individualized decision-making may be appropriate—some small polyps may regress spontaneously; however, the lack of bleeding does not completely exclude underlying malignancy, warranting consideration of excision in patients with risk factors or where malignancy cannot be reliably excluded by imaging NICE NG12 Goc and Birge O. 2026 Uglietti et al. 2019Goc & Birge O 2026. Furthermore, hysteroscopic polypectomy in these cases can prevent potential progression and facilitate symptom control if symptoms develop later. Routine conservative management without excision is less favored because of the risk, albeit low, of malignant transformation or coexistence.

In summary, the risk of malignancy in an endometrial polyp in a patient without bleeding is low but exists and increases with certain risk factors. Complete excision via hysteroscopic polypectomy is recommended to exclude malignancy and guide further management, even when bleeding is absent, particularly if risk factors or suspicious imaging features are present.