The present invention relates to an endometrial aspiration biopsy sampler, comprising an insertion end inserted into the uterine lumen, and at least one specimen recovery hole formed through the circumference of the insertion end, and a passage communicating with the specimen recovery hole is formed therein. Sampler body; A guide rod which reciprocates along the passage of the sampler body so as to be inserted or withdrawn toward the insertion end, and generates a negative pressure in the passage of the insertion end to suck a sample of the endometrial recovered through the passage of the insertion end; And a stopper for locking or releasing the guide rod to the sampler body.
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