What could possibly be wrong if you have a 45-60 day menstruation cycle for many years?

What is wrong is the belief that all women have a nice 28 day cycle! Your cycle is fine. You obviously just have a longer cycle than usual. I know of women that have a 12 week cycle! It is your hormones that cause ovulation, and then a period if that egg is not fertilised. All it means is your hormones only trigger ovulation every 45-60 days.