Yaz has caused extremely bad constipation, I have had to go to multiple doctors and i have been taking laxatives for the past few months. My doctor said I had irritable bowel syndrome, but he never said it was from Yaz. After reading other girls experiences who are my age, i've realized it has to be the Yaz. I never had this problem until last June when I started talking it. What birth control should I switch to?