I had a bichectomy procedure, where the stitches are placed there is kind of some white substance, is this normal?

This is normal.  As the stitches dissolve, the mucosa can appear white or pink.  Its not out of the ordinary.  Things to look out for would be an increase in swelling and pain after a few days i.e. once things are improving, all of a sudden you develop these symptoms.  That being said, if you have any questions, its always a good idea to contact your operating surgeon as they know what stitches were used, and what your post operative regimen is.  Best of luck! 

Buccal fat removal requires small incisions inside the mouth. They are usually closed with disolvable stitches. As the tissue heals ( mucosa) it is possible to see  area of healing acquiring a white or pink color ( healing mucosa) . Most of the time this would take few days to weeks to disappear. Patients with questions and concerns about their buccal fat removal healing should contact the plastic surgeon that performed the operation