"Procto-" is a medical prefix that typically refers to the rectum and anus. Some common synonyms for "procto-" include "recto-", "anorectal-", and "peri-anal-". These prefixes are often used in medical terminology to describe various conditions related to the rectum and anus, such as proctitis, rectal prolapse, and peri-anal abscess. Understanding the different prefixes and their meanings can be helpful for patients and healthcare professionals alike when discussing and diagnosing issues related to the gastrointestinal system. By familiarizing oneself with these terms, individuals can better communicate with their doctors and understand the nature of any conditions they may be experiencing.