Breakthrough bleeding after few months on pill.tried another ,worked awhile and the same scenario.doesnt occur of the pill my question is why when some people are on the same pill forever?  Are the specific pills that are less likely to cause this? Advise much appreciated.
Breakthrough bleeding occurs as a result of shedding of the uterine lining when the hormonal level in the body alters and is not sufficient to maintain the uterine lining. To avoid this problem higher dose pills are recommended.