Polygons are 2-dimensional shapes. They are made of straight lines, and the shape is closed (all the lines connect up).
Rectopexy is a surgical procedure used to correct rectal prolapse, a condition characterized by a weakening of the muscles that hold the rectum in place. Though the exact cause of this problem is unknown, there are several conditions that may contribute to its development.
A digital rectal exam (DRE) is a screening test for both men and women. A doctor may perform a DRE as part of a routine medical examination. Or a person may need a DRE if he or she has symptoms such as rectal bleeding, a change in bowel habits, urethral discharge or bleeding, or a change in urine stream.