it could be perimenopause or menopause but i would check with her gynecologist first to see if she has an ovarian cyst causing her irregularity and extra bleeding. things can get irregular as a woman approaches menopause but there is plenty that can be done to regularize things and help her.
menometrorrhagia after 49. my wife is 49 and she is not pregnant but she has abnormal intervals of her menstrual cycle but she gets spotty and bleeds more frequently between the cycles and it's every 20 days