ovarian cysts
"I got on this pill to stop from getting ovarian cysts; while I don't think it completely solved this problem, I found this pill very helpful overall.  I had very few side effects: no spotting, no nausea, no loss of hair, but I do still get cramping before my period.  It shortened my period to about 5 days and it always comes when expected.  I have tried two other types of pills, one being Yaz, and I came back to Ortho-Tricyclen Lo because of the fewer side effects.  Its a great pill and I haven't had any problems with it.  I've been on it for about 2 years."