polycystic ovary syndrome
"I was diagnosed with PCOS about two years ago. I started on generic Yaz and Metformin at the same time. My cycle regulated and I lost about 50lbs in six months. I noticed a significant reduction in unwanted hair as well. I quit taking it for a while (life got busy, didn't refill it, moved half way across the country, new job, etc.) and I put nearly all of the weight back on. Needless to say, I've been back on Metformin for about two weeks and I've already lost six lbs."