The effect of human plastic surgery is influenced by many factors, such as the doctor's technical level, surgical methods, nursing methods before and after surgery, living habits and so on. Even if you have undergone plastic surgery, you will show different effects because of the above differences.

Some possible reasons for Olivia and Crystal's situation are as follows:

Individual differences: Everyone's body and genes are different, and different individuals will show different effects after plastic surgery.

Selection of surgical methods: Different surgical methods have different effects on the results. Maybe Olivia and Crystal chose different plastic surgery methods.

Doctor's technical level: The technical level, experience and professional knowledge of plastic surgeons also have a great influence on the surgical results. Maybe they chose different levels of doctors or plastic surgeons.

In a word, the effect of plastic surgery is influenced by many factors, so even the same plastic surgery project, different people will show different effects. It should be reminded that regular hospitals and doctors should be selected during plastic surgery, and postoperative care and living habits are also very important.