Hello i wad wondering what cause u to have 3 periods in one month this last one is really stringy what causes that?

Get checked: Frequent menstrual bleeding resulting in 3 periods within one month is not usual. This is often the result of hormonal disturbances, for example: stopping or starting a birth control method or missing birth control pills. Other potential causes include extreme stress or thyroid disease. Sexually transmitted diseases (STD) can cause menstrual changes. You should be evaluated by a physician.