Why does one have irregular periods? women, 40 year old spotting once in a while but not a period. began to have period 15 1/2 years old.

Irregular : Irregular periods can have many causes. This might be a sign of pregnancy, infrequent ovulation, a hormone imbalance, early menopause or possibly some type of abnormality of the female genital organs such as the uterus or the cervix. You need a visit to a gyn doctor who will ask a lot about the dates of your bleeding, the amount, whether or not there were other hormonal symptoms. The pelvic exam can help identify conditions, and then there will likely need to be some blood tests and perhaps a pelvic ultrasound. The treatment depends on the cause. It might be just going on the pill, it might be no treatment at all.