<prompt> Answer this question truthfullyWhat are endocervical polyps and what type of cells line them?  <response>: <reason> Endocervical polyps are benign growths or protrusions that arise from the endocervix, which is the opening of the cervix into the uterus. These polyps are lined by mucus-secreting columnar cells, which are a type of glandular epithelial cells that are normally found in the endocervix. Endocervical polyps are a common gynecologic condition and are usually asymptomatic, but they can cause abnormal vaginal bleeding, discharge, or discomfort in some cases. 