Is Vitiligo a side effect of Yasmin?

I just read about all of the side effects for Yasmin, which I have been taking for about 4 years. Around the same time I started taking it, I slowly started developing Vitiligo, the loss of pigment, on my hands. At the time, I didn't think anything of it because the problems started very gradually and I had been taking a bc previous that did not cause any problems except weight gain. Now, 4 years later, my Vitiligo is all over my body and I am wondering if there is a link between Yasmin and Vitiligo? Has this happened to anyone else? Is it a known side effect? Has anyone's Vitiligo gone away or stopped spreading since they have been off Yasmin? Please let me know. Thank you.