I want a breast augmentation but I have vitiligo. Will a breast augmentation make it worse?

Hello dear!!
Thanks for the question and provided information as well. 
This surgery its not supposed to worsen your vitiligo. But it can cause some stress post-op and that can make worse yoru vitiligo. l recommend you to make an appointment with a board certified plastic surgeon to talk about your goals and anything you need to know.
Good luck :)
Dr. Luis Mejia.

Hello, thank you for your question. It is as you probably know, usually an autoimmune disease, It is hard to predict its spread. You should first talk to your treating dermatologist about any concerns he/she may have about the interaction of your vitiligo with your surgery.

Thank you for your question.Vitiligo is an autoimmune disorder of the skin. Surgery can be a stress on the body and may or may not effect the vitiligo.