再問一下uterine polyp

she had a pelvic ultrasound performed, which showed that her endometrium was thin. She had posterior sessile vascular polyp measuring 6 x 5 x 3 mm, as well as an endocervical polyp measuring 2.3 x 1.2 x 1 cm

Her Pap smears are up-to-date and have always been normal.

Doctor recommended hysteroscopic polypectomy.

請問這個polyp的cause是什麽？普遍嗎？要不要hysteroscopic polypectomy去除？

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