Investigators aim to collect endometrial sampling with Li Brush among target population who have risks for endometrial neoplasm, then Fractional curettage should performed with these participants, investigators intend to compare the pathological diagnosis results of cytology and fractional curettage to evaluate the sensitivity of Li Brush and investigators expect that the brush can be used for screening of endometrial cancer in the postmenopausal period in the clinic.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Compare the new diagnosis method with gold standard via Kappa statistic
Timeframe: one week within the enrollment