The term POST-OPP is a combination of two words, PRE and OPP. PRE stands for Pre-Operative Planning, which is the process of preparing for a surgical procedure. OPP stands for Operative Procedure, which is the actual surgical procedure itself. POST-OPP is the period of time after the surgery, when the patient is recovering and being monitored for any complications or side effects. During this time, the patient may need to take medications, attend follow-up appointments, and make lifestyle changes to ensure a successful recovery.