No, skipping your period won't cause imbalances or lead to diseases. Skipping your period is safe, and science proves it. Regarding PCOS, birth control is actually a treatment for it and it does not give way for PCOS to develop. Read our article on what PCOS is and how it is treated. When on birth control, you have the option to skip your period. You can decide if you want to bleed every month or not.