What does the suffix "stomy" refer to?

The suffix "stomy" refers to the creation of a new opening in the body. This term is commonly used in medical procedures where an artificial opening is formed, such as in colostomy or tracheostomy, allowing for the discharge of bodily substances or providing an alternative route for bodily functions that has been altered due to disease or injury. Understanding that "stomy" denotes a new opening helps physical therapy technicians recognize various conditions and surgical procedures that may affect a patient's rehabilitation plan, as they may need to accommodate for these changes during therapy regimens. The other choices do not convey the concept of creating an opening, which is fundamental to the definition of "stomy."