There may be several reasons why celebrities do not go to Japan for plastic surgery.

First of all, although Japan’s plastic surgery technology is excellent, it is not the best in the world. Relatively speaking, South Korea’s plastic surgery technology may be more well-known and popular.

Secondly, celebrities usually choose to keep the plastic surgery process secret to protect their image and privacy. For some celebrities, they may prefer to go to South Korea or other countries for plastic surgery to avoid being exposed by the media.

In addition, celebrities usually have more resources and funds. They can choose more internationally renowned and professional plastic surgery doctors or institutions to obtain better plastic surgery results and guarantees.

To sum up, the reason why celebrities do not go to Japan for plastic surgery may be due to various considerations such as technology, confidentiality, and resources.