Overview
What the Lesion Is—and Why Bleeding May Occur
An endometrial polyp is a focal overgrowth of endometrial glands and supporting stroma that projects into the uterine cavity.
An endometrial polyp is a focal overgrowth of endometrial glands and supporting stroma that projects into the uterine cavity. Most are benign. A polyp may remain silent, contribute to abnormal uterine bleeding, or be associated with infertility because a focal growth changes the normally smooth endometrial cavity. The symptoms do not determine the pathology. A patient can have troublesome bleeding from a benign polyp, while another patient with the same apparent diagnosis may have premalignant or malignant tissue within the lesion. That is why the clinical context and the need for tissue diagnosis matter more than the word “polyp” on an imaging report.